Data          [1]      [2]      [3]
bal. 13      83.3        0        0
bal. 14      44.4        0        0
bal. 15      66.7        0        0
bal. 16        25        0        0
bal. 17      27.3        0        0
bal. 18       100        0        0
bal. 19      66.7        0        0
bal. 20      91.7        0      8.3
bal. 21        60        0        0
bal. 22      88.9     11.1        0
bal. 23      55.6        0        0
bal. 24      71.4        0        0
bal. 25      33.3        0        0
bal. 26       100        0        0
bal. 27      58.3        0      8.3
bal. 28      83.3        0        0
bal. 29      71.4        0        0
bal. 30      44.4     11.1        0
geg. 1       33.3        0        0
geg. 2       62.5        0        0
geg. 3       66.7        0        0
geg. 4        100        0        0
geg. 5       28.6        0        0
geg. 6       66.7        0     11.1
geg. 7         50        0        0
geg. 8         40       20        0
geg. 9       14.3        0        0
geg. 10      33.3        0        0
geg. 11      33.3        0        0
geg. 12        50        0        0
geg. 13       100        0        0
    viso     1850     42.2     27.8