Influenza

Part 22

Chapter 223,132 wordsPublic domain

TABLE IV. _The incidence of influenza in families of different sizes._ (Influence of size of family). ═══════════╤═══════════╤═══════════╤═══════════════════════════════════ │ │ Total No. │ No. of │ │ of │ individuals│No. of such│individuals│ Number of these individuals who in family. │ families. │included in│ developed influenza. │ │ all such │ │ │ families. │ ───────────┼───────────┼───────────┼───────────┬───────────┬─────────── „ │ „ │ „ │ 1918. │ 1920. │ Total. ───────────┼───────────┼───────────┼─────┬─────┼─────┬─────┼─────┬───── „ │ „ │ „ │ No. │ Per │ No. │ Per │ No. │ Per │ │ │ │cent.│ │cent.│ │cent. ───────────┼───────────┼───────────┼─────┼─────┼─────┼─────┼─────┼───── 1│ 39│ 39│ 7│17.95│ 3│ 7.69│ 10│24.42 2│ 260│ 520│ 96│18.46│ 55│10.58│ 151│29.04 3│ 359│ 1077│ 215│19.96│ 128│11.88│ 343│31.85 4│ 396│ 1584│ 319│20.10│ 169│10.67│ 488│30.81 5│ 375│ 1875│ 423│22.56│ 203│10.83│ 626│33.39 6│ 264│ 1584│ 361│22.79│ 151│ 9.53│ 512│32.32 7│ 179│ 1253│ 279│22.27│ 109│ 8.70│ 388│30.96 8│ 103│ 824│ 156│18.93│ 55│ 6.67│ 211│25.61 9│ 57│ 513│ 85│16.57│ 21│ 4.09│ 106│20.66 10│ 28│ 280│ 40│14.14│ 26│ 9.29│ 66│23.57 11│ 15│ 165│ 10│ 6.06│ 7│ 4.24│ 17│10.30 12│ 4│ 48│ 0│ 0.0│ 5│10.42│ 5│10.42 13│ 2│ 26│ 5│19.23│ 3│11.54│ 8│30.77 14│ 1│ 14│ 0│ 0.0│ 0│ 0.0│ 0│ 0.0 ───────────┴───────────┴───────────┴─────┴─────┴─────┴─────┴─────┴─────

In 1920, 9.55 per cent. of the entire canvassed population contracted the disease. The table shows that 7.69 per cent. of all individuals in families of one contracted influenza, and between 10 and 12 per cent. in families of from two to five individuals. Above the family of five the incidence rates again are lower and varying within wide limits. The last column shows the percentage of individuals by size of family contracting the disease in either or both epidemics.

The average size of all families was 4.7 individuals.

If we consider only those family groups having over 1,000 individuals as being sufficiently large to be representative, we may conclude that families of from three to seven individuals show no progressive increase in influenza incidence with increase in size of the family. But all the available evidence indicates that other things being equal, the age incidence is a very important factor. Its influence will be felt in the subject under consideration, and it will modify the results. Thus, families of one or two are almost invariably adults; families of three are very frequently made up of two adults and a child or infant, while families of from five to seven will be more likely to have a high proportion of young adults—the age period more seriously affected.

The next question arising is whether those families, large or small, which are living in crowded circumstances, are more likely to develop the disease. Arbitrary standards must be chosen as indices of crowding. We have chosen two in order that they may check each other. The first is based upon the number of individuals sleeping in a bedroom. Families are classified as follows: Maximum sleeping in a single bedroom, 1; maximum sleeping in a single bedroom, 2; maximum per bedroom, 3, 4, etc.

The second standard of crowding is based upon the ratio of the number of individuals in the family and the number of rooms occupied. One person living in one room is not crowded; two in two rooms, three in three rooms, four in four rooms, eight in eight rooms, twelve in twelve rooms, are not crowded. Two people living in one room four in two rooms, six in three rooms, twelve in six rooms, are decidedly more crowded. On the contrary, one individual in two rooms, two in four, three in six, four in eight, five in ten, etc. have an unusual amount of room.

The ratios ^P⁄_{R} are then throughout, ¹⁄₁, ²⁄₁, ½. These are used as dividing lines. All families with ratios higher than ²⁄₁ are classed as very crowded. Families with ratios above ¹⁄₁ up to and including ²⁄₁ are classed as crowded. Families with ratios above ½ up to and including ¹⁄₁ are classed as roomy, and those with ratio of ½ or lower are classified as very roomy.

Classifying all families in all six districts according to these last four degrees of crowding, we find, as is shown by Table V, that there is a progressive increase in the proportion of families with one or more cases of the disease, with increase in the extent of crowding.

According to the standard first described we find as is shown in Table VI that families with three, four and five individuals sleeping in a single room show a progressive increase of incidence over those families with but one or two per bedroom. This again is shown best in the total for all families, but is borne out in a study of each district. These statistics are however of little value for the study of the effect of overcrowding, because crowded families are usually large families. With an influenza incidence of 20 per cent. we would theoretically expect every family of five or larger to have one or more cases. This would amount to 100 per cent. infected families and such a state would not only influence, but dominate the statistics regarding overcrowding.

TABLE V. _Effect of crowding on development of influenza in families._ (A higher proportion of crowded households than roomy are invaded). (Standard used: ratio of number individuals to number rooms). ══════════════╤══════════╤═════════════════════════════════════════════ Living │ No. of │ Proportion of these families visited by conditions. │ such │ influenza. │families. │ ──────────────┼──────────┼──────────┬──────────┬────────────┬────────── │ │ In │ │ In both │ Total „ │ „ │ 1918–19. │ In 1920. │ epidemics │ families │ │ │ │(Recurrent).│ invaded. ──────────────┼──────────┼────┬─────┼────┬─────┼─────┬──────┼────┬───── „ │ „ │No. │ Per │No. │ Per │ No. │ Per │No. │ Per │ │ │cent.│ │cent.│ │cent. │ │cent. ──────────────┼──────────┼────┼─────┼────┼─────┼─────┼──────┼────┼───── District I. │ │ │ │ │ │ │ │ │ V. Cr. │ 53│ 30│56.61│ 15│28.31│ 12│ 22.64│ 31│58.49 Cr. │ 195│ 107│54.87│ 59│30.26│ 43│ 22.05│ 123│63.08 R. │ 79│ 36│45.57│ 24│30.38│ 18│ 22.78│ 42│53.16 V. R. │ 16│ 7│43.75│ 1│ 6.6│ 0│ 0.0│ 8│50.00 ──────────────┼──────────┼────┼─────┼────┼─────┼─────┼──────┼────┼───── District II. │ │ │ │ │ │ │ │ │ V. Cr. │ 4│ 1│25.00│ 1│25.00│ 1│ 25.00│ 1│25.00 Cr. │ 137│ 70│51.09│ 31│22.63│ 2│ 8.76│ 89│64.96 R. │ 208│ 70│33.65│ 39│18.75│ 7│ 8.17│ 92│44.23 V. R. │ 103│ 20│19.42│ 7│ 6.80│ 2│ 1.94│ 25│24.27 ──────────────┼──────────┼────┼─────┼────┼─────┼─────┼──────┼────┼───── District III. │ │ │ │ │ │ │ │ │ V. Cr. │ 13│ 9│69.23│ 2│15.38│ 1│ 7.69│ 10│76.92 Cr. │ 213│ 99│46.48│ 65│30.52│ 40│ 18.78│ 124│58.22 R. │ 143│ 62│43.36│ 35│24.48│ 15│ 10.49│ 82│57.34 V. R. │ 21│ 8│27.59│ 2│ 6.89│ 2│ 6.89│ 8│38.09 ──────────────┼──────────┼────┼─────┼────┼─────┼─────┼──────┼────┼───── District IV. │ │ │ │ │ │ │ │ │ V. Cr. │ 0│ 0│ │ 0│ │ 0│ │ 0│ Cr. │ 27│ 18│66.67│ 8│29.63│ 5│ 18.52│ 21│77.77 R. │ 137│ 72│52.55│ 50│36.49│ 21│ 15.33│ 101│73.72 V. R. │ 95│ 38│40.00│ 27│28.42│ 12│ 12.63│ 53│55.79 ──────────────┼──────────┼────┼─────┼────┼─────┼─────┼──────┼────┼───── District V. │ │ │ │ │ │ │ │ │ V. Cr. │ 6│ 2│33.33│ 4│66.67│ 2│ 33.33│ 4│66.67 Cr. │ 110│ 67│60.91│ 37│33.64│ 25│ 22.73│ 79│71.82 R. │ 209│ 104│49.76│ 70│33.49│ 38│ 18.18│ 146│69.86 V. R. │ 14│ 3│21.42│ 3│21.42│ 0│ │ 6│42.84 ──────────────┼──────────┼────┼─────┼────┼─────┼─────┼──────┼────┼───── District VI. │ │ │ │ │ │ │ │ │ V. Cr. │ 0│ 0│ │ 0│ │ 0│ │ 0│ Cr. │ 2│ 1│50.00│ 0│ 0.0│ 0│ 0.0│ 1│50.00 R. │ 92│ 57│61.96│ 23│25.00│ 14│ 15.22│ 66│71.74 V. R. │ 189│ 65│34.39│ 46│24.34│ 19│ 10.05│ 92│48.68 ──────────────┴──────────┴────┴─────┴────┴─────┴─────┴──────┴────┴─────

═══════════╤══════════╤═════╤═════╤═════╤═════╤═════╤═════╤══════╤═════ Living │ No. of │ No. │ Per │ No. │ Per │ No. │ Per │ │ Per conditions.│families. │1918.│cent.│1920.│cent.│both.│cent.│Total.│cent. │ │ │1918.│ │1920.│ │both.│ │ ───────────┼──────────┼─────┼─────┼─────┼─────┼─────┼─────┼──────┼───── Very │ 80│ 43│53.75│ 25│31.25│ 18│22.50│ 50│62.50 crowded │ │ │ │ │ │ │ │ │ Crowded │ 693│ 372│53.68│ 201│29.00│ 126│18.18│ 447│64.50 Roomy │ 865│ 394│45.55│ 244│28.21│ 125│14.45│ 513│59.31 Very Roomy │ 443│ 143│32.28│ 87│19.64│ 36│ 8.13│ 194│43.79 ───────────┼──────────┼─────┼─────┼─────┼─────┼─────┼─────┼──────┼───── All │ Total │1918 │ Per │1920 │ Per │Both │ Per │Total │ Per │ │ │cent.│ │cent.│ │cent.│ │cent. ───────────┼──────────┼─────┼─────┼─────┼─────┼─────┼─────┼──────┼───── │ 2081│ 952│45.75│ 557│26.77│ 305│14.66│ 1204│57.86 ───────────┴──────────┴─────┴─────┴─────┴─────┴─────┴─────┴──────┴─────

TABLE VI. _Effect of crowding._ (Standard used: maximum number sleeping in one bed room.) ══════════════╤══════════╤═════════════════════════════════════════════ Maximum No. │ No. of │ Proportion of these families with cases of sleeping per │ such │ influenza. room. │families. │ ──────────────┼──────────┼──────────┬──────────┬────────────┬────────── │ │ In │ │ In both │ Total „ │ „ │ 1918–19. │ In 1920. │ epidemics. │ families │ │ │ │ │ invaded. ──────────────┼──────────┼────┬─────┼────┬─────┼─────┬──────┼────┬───── „ │ „ │No. │ Per │No. │ Per │ No. │ Per │No. │ Per │ │ │cent.│ │cent.│ │cent. │ │cent. ──────────────┼──────────┼────┼─────┼────┼─────┼─────┼──────┼────┼───── District I. │ │ │ │ │ │ │ │ │ 1 │ 16│ 6│37.50│ 4│25.00│ 3│ 18.75│ 7│93.75 2 │ 93│ 52│55.91│ 31│33.33│ 20│ 21.51│ 63│67.74 3 │ 145│ 65│44.83│ 47│32.41│ 27│ 18.62│ 85│58.62 4 │ 79│ 43│54.43│ 25│31.65│ 17│ 21.52│ 51│64.56 5 │ 24│ 11│45.83│ 11│45.83│ 6│ 25.00│ 16│66.67 6 │ 10│ 3│30.00│ 3│30.00│ 1│ 10.00│ 5│50.00 ──────────────┼──────────┼────┼─────┼────┼─────┼─────┼──────┼────┼───── District II. │ │ │ │ │ │ │ │ │ 1 │ 90│ 15│16.67│ 7│ 7.77│ 2│ 2.22│ 20│22.22 2 │ 211│ 68│32.23│ 36│17.06│ 14│ 6.64│ 90│42.65 3 │ 115│ 59│51.30│ 23│20.00│ 10│ 8.69│ 72│66.61 4 │ 33│ 20│60.60│ 11│33.33│ 6│ 18.18│ 25│75.76 5 │ 3│ 1│33.33│ 2│66.67│ 1│ 33.33│ 2│66.67 6 │ 0│ 0│ │ 0│ │ 0│ │ 0│ ──────────────┼──────────┼────┼─────┼────┼─────┼─────┼──────┼────┼───── District III. │ │ │ │ │ │ │ │ │ 1 │ 26│ 10│38.46│ 3│11.54│ 2│ 7.69│ 11│42.31 2 │ 179│ 73│40.78│ 47│26.26│ 23│ 12.85│ 97│54.19 3 │ 145│ 72│49.66│ 37│25.52│ 23│ 15.86│ 86│59.31 4 │ 39│ 20│51.28│ 15│38.46│ 8│ 20.51│ 27│69.23 5 │ 8│ 5│62.50│ 2│25.00│ 1│ 12.50│ 6│75.00 6 │ 0│ 0│ │ 0│ │ 0│ │ 0│ ──────────────┼──────────┼────┼─────┼────┼─────┼─────┼──────┼────┼───── District IV. │ │ │ │ │ │ │ │ │ 1 │ 53│ 15│28.30│ 15│28.30│ 6│ 11.32│ 24│45.28 2 │ 165│ 80│48.48│ 56│33.94│ 22│ 13.33│ 114│69.09 3 │ 42│ 29│69.05│ 15│35.71│ 10│ 23.81│ 34│80.95 4 │ 5│ 4│80.00│ 0│ 0.0│ 0│ 0.0│ 4│80.00 5 │ 0│ 0│ │ 0│ 0.0│ 0│ │ 0│ 6 │ 0│ 0│ │ 0│ │ 0│ │ 0│ ──────────────┼──────────┼────┼─────┼────┼─────┼─────┼──────┼────┼───── District V. │ │ │ │ │ │ │ │ │ 1 │ 23│ 8│34.77│ 6│26.08│ 1│ 4.35│ 13│56.52 2 │ 156│ 70│44.37│ 48│30.77│ 24│ 15.38│ 94│60.26 3 │ 130│ 81│62.31│ 44│33.84│ 27│ 20.77│ 98│75.38 4 │ 27│ 18│66.66│ 14│51.85│ 12│ 44.44│ 20│74.07 5 │ 6│ 3│50.00│ 4│66.67│ 3│ 50.00│ 4│66.67 6 │ 1│ 0│ 0.00│ 0│ 0.00│ 0│ 0.00│ 0│ 0.00 ──────────────┼──────────┼────┼─────┼────┼─────┼─────┼──────┼────┼───── District VI. │ │ │ │ │ │ │ │ │ 1 │ 120│ 42│35.00│ 24│20.00│ 10│ 8.33│ 56│46.67 2 │ 146│ 77│52.74│ 34│23.29│ 22│ 15.07│ 89│60.96 3 │ 10│ 5│50.00│ 5│50.00│ 1│ 10.00│ 6│60.00 4 │ 0│ 0│ │ 0│ │ 0│ │ 0│ 5 │ 0│ 0│ │ 0│ │ 0│ │ 0│ 6 │ 0│ 0│ │ 0│ │ 0│ │ 0│ ──────────────┼──────────┼────┼─────┼────┼─────┼─────┼──────┼────┼───── Total │ │ │ │ │ │ │ │ │ 1 │ 328│ 96│29.27│ 59│17.99│ 24│ 7.32│ 131│39.94 2 │ 450│ 420│44.21│ 252│26.53│ 125│ 13.16│ 547│57.57 3 │ 587│ 311│52.98│ 171│29.13│ 98│ 16.69│ 381│64.91 4 │ 183│ 105│57.38│ 65│35.52│ 43│ 23.50│ 127│69.39 5 │ 41│ 20│48.78│ 19│46.34│ 11│ 26.83│ 28│68.29 6 │ 11│ 3│27.27│ 3│27.27│ 1│ 9.09│ 5│45.45 ──────────────┴──────────┴────┴─────┴────┴─────┴─────┴──────┴────┴─────

An objection will be raised, and justly so, that we have up to this point been studying influenza in families irrespective of how many cases there are in each family. Until now the family with one case was classified exactly the same as the family with eight cases. In the following classification we have taken first all families with a maximum of one sleeping in one room, and sub-divided these into families with no influenza, those with one case, two cases, etc. We have likewise classified families with maxima from two to six per bedroom. For the sake of brevity we will consider only the last column of Table VII, influenza incidence among the individuals of the various classes of families for both epidemics. Study of the table will show a correspondence in the other columns. Solitary cases were more numerous in families with but one or two per bedroom (27 per cent.) and less frequent in families with three, four and five per bedroom, (23 per cent., 18 per cent., and 20 per cent., respectively). The families of six per bedroom form such a small group that here again they should not be considered. Multiple cases become progressively more numerous as the number of individuals per bedroom increases (14 per cent. in families of one per bedroom, 29 per cent. in two per bedroom, 41 per cent. in three, 51 to 52 per cent. in four, and 45 per cent. in five). Fifty-eight per cent. of families with a maximum of one per bedroom, 43 per cent. with two per bedroom, 35 per cent. with three, 31 per cent. with four and 35 per cent. with five had no influenza at all.

But here again, the fact that crowded families are usually large families interferes with drawing any conclusions. A family with four per bed room would generally be larger than one with two per bed room.

Frost observed that, considering the ratio of incidence in total white populations irrespective of housing as 100, and after adjusting all groups to a uniform sex and age distribution, the ratio where there were more than 1.5 rooms per person was 77, from 1 to 1.5 rooms per person the ratio was 94, and for individuals averaging less than one room per person it was 117. _The attack rate showed a consistent increase as the number of rooms per person decreased._

Woolley observed, “Housing, if one includes in the term overcrowding, has surely been an important factor in spreading the epidemic. Whether it has had any appreciable effect upon the incidence of complications is a question. The epidemic has certainly gone faster and was over sooner because of the crowding; the hospital was filled sooner than it should have been as a result of the rapidity of spread of the disease, and overcrowding of the hospital occurred when with a less rapid spread it would not have occurred; but whether the number of fatalities or the number of pneumonias was greater than they should have been with less crowded conditions may be doubted.”

TABLE VII. _Relationship between crowding and number of cases in the family._ (Influenza appeared more frequently in crowded households and such families more frequently had multiple cases.) ══════════════════════════════════════════════════════════════════════ Families with maximum per bed room of one. (58.23 per cent. of these had no influenza.) ──────────┬──────────┬─────────┬─────────┬──────────┬─────────┬─────── Cases │Total such│ Invaded │ Invaded │Invaded in│ Total │Two or developing│families. │ in │in 1920. │ both │families │ more in family.│ │1918–19. │ │epidemics.│invaded. │cases. ──────────┼──────────┼───┬─────┼───┬─────┼────┬─────┼───┬─────┼─────── „ │ „ │No.│ Per │No.│ Per │No. │ Per │No.│ Per │ Per │ │ │cent.│ │cent.│ │cent.│ │cent.│ cent. ──────────┼──────────┼───┼─────┼───┼─────┼────┼─────┼───┼─────┼─────── 1│ 85│ 55│17.68│ 37│11.89│ 7│ 2.25│311│27.33│ 2│ 32│ 26│ 8.36│ 16│ 5.14│ 10│ 3.22│ │10.28│} 14.44 3│ 9│ 8│ 2.57│ 2│ 0.64│ 1│ 0.32│ │ 2.88│ „ 4│ 4│ 3│ 0.96│ 4│ 1.28│ 3│ 0.96│ │ 1.28│ „ 5│ 0│ 0│ │ │ │ │ │ │ │ 6│ 0│ │ │ │ │ │ │ │ │ 7│ 0│ │ │ │ │ │ │ │ │ 8│ 0│ │ │ │ │ │ │ │ │ ──────────┴──────────┴───┴─────┴───┴─────┴────┴─────┴───┴─────┴─────── 2 per bed room. (43.35 per cent. of these had no influenza.) ──────────┬──────────┬───┬─────┬───┬─────┬────┬─────┬───┬─────┬─────── 1│ 254│169│18.27│112│12.11│ 27│ 2.92│925│27.46│ 2│ 135│112│12.11│ 64│ 6.92│ 41│ 4.43│ │14.59│} 29.17 3│ 79│ 65│ 7.03│ 38│ 4.11│ 24│ 2.59│ │ 8.54│ „ 4│ 40│ 35│ 3.78│ 16│ 1.73│ 11│ 1.18│ │ 4.32│ „ 5│ 11│ 9│ 0.97│ 8│ 0.81│ 6│ 0.64│ │ 1.18│ „ 6│ 3│ 3│ 0.32│ 0│ 0.0│ 0│ 0.0│ │ 0.32│ „ 7│ 2│ 2│ 0.22│ 1│ 0.11│ 1│ 0.11│ │ 0.22│ „ 8│ 0│ 0│ │ │ │ │ │ │ │ ──────────┴──────────┴───┴─────┴───┴─────┴────┴─────┴───┴─────┴─────── 3 per bed room. (35.34 per cent. of these had no influenza.) ──────────┬──────────┬───┬─────┬───┬─────┬────┬─────┬───┬─────┬─────── 1│ 136│104│17.84│ 50│ 8.58│ 18│ 3.08│583│23.33│ 2│ 103│ 77│13.21│ 55│ 9.43│ 29│ 4.97│ │17.67│} 41.33 3│ 59│ 51│ 8.75│ 29│ 4.97│ 21│ 3.60│ │10.12│ „ 4│ 43│ 40│ 6.86│ 16│ 2.76│ 13│ 2.23│ │ 7.37│ „ 5│ 22│ 22│ 3.77│ 9│ 1.54│ 9│ 1.54│ │ 3.77│ „ 6│ 12│ 12│ 2.06│ 5│ 0.86│ 5│ 0.86│ │ 2.06│ „ 7│ 2│ 2│ 0.34│ 0│ │ 0│ │ │ 0.34│ „ 8│ 0│ │ │ │ │ │ │ │ │ ──────────┴──────────┴───┴─────┴───┴─────┴────┴─────┴───┴─────┴─────── 4 per bed room. (30.79 per cent. of these had no influenza.) ──────────┬──────────┬───┬─────┬───┬─────┬────┬─────┬───┬─────┬─────── 1│ 31│ 24│13.64│ 10│ 5.68│ 3│ 1.70│176│17.61│ 2│ 22│ 19│10.80│ 13│ 7.39│ 10│ 5.68│ │12.50│} 51.60 3│ 37│ 32│18.18│ 25│14.20│ 20│11.36│ │20.92│ „ 4│ 14│ 11│ 6.25│ 6│ 3.41│ 3│ 1.70│ │ 9.09│ „ 5│ 9│ 9│ 5.12│ 4│ 2.27│ 4│ 2.27│ │ 5.12│ „ 6│ 4│ 3│ 1.70│ 2│ 1.19│ 1│ 0.59│ │ 2.27│ „ 7│ 3│ 3│ 1.70│ 0│ │ 0│ │ │ 1.70│ „ 8│ 0│ │ │ │ │ │ │ │ │ ──────────┴──────────┴───┴─────┴───┴─────┴────┴─────┴───┴─────┴─────── 5 per bed room. (35 per cent. had none.) ──────────┬──────────┬───┬─────┬───┬─────┬────┬─────┬───┬─────┬─────── 1│ 8│ 6│15.00│ 4│10.00│ 2│ 5.00│ 40│20.00│ 2│ 6│ 5│12.50│ 4│10.00│ 3│ 7.25│ │15.00│} 45.00 3│ 3│ 2│ 5.00│ 2│ 5.00│ 1│ 2.50│ │ 7.50│ „ 4│ 2│ 1│ 2.50│ 2│ 5.00│ 1│ 2.50│ │ 5.00│ „ 5│ 4│ 2│ 5.00│ 3│ 7.50│ 1│ 2.50│ │10.00│ „ 6│ 2│ 2│ 5.00│ 2│ 5.00│ 2│ 5.00│ │ 5.00│ „ 7│ 0│ │ │ │ │ │ │ │ │ „ 8│ 1│ 0│ 0.0│ 1│ 2.50│ 0│ 0.0│ │ 2.50│ „ ──────────┴──────────┴───┴─────┴───┴─────┴────┴─────┴───┴─────┴─────── 6 per bed room. (50 per cent. had none.) ──────────┬──────────┬───┬─────┬───┬─────┬────┬─────┬───┬─────┬─────── 1│ 2│ 1│10.00│ 1│10.00│ 0│ 0.0│ 10│20.00│ 2│ 1│ 1│10.00│ 1│10.00│ 1│10.00│ │10.00│} 30.00 3│ 2│ 1│10.00│ 1│10.00│ 0│ 0.0│ │20.00│ „ 4│ 0│ │ │ │ │ │ │ │ │ 5│ 0│ │ │ │ │ │ │ │ │ 6│ 0│ │ │ │ │ │ │ │ │ 7│ 0│ │ │ │ │ │ │ │ │ 8│ 0│ │ │ │ │ │ │ │ │ ──────────┴──────────┴───┴─────┴───┴─────┴────┴─────┴───┴─────┴───────