Data          [1]      [2]      [3]      [4]      [5]
bal. 9       18.6     12.6      8.9      5.6      9.4
bal. 10      17.5     15.1      8.8      4.1     10.5
bal. 11      16.6     13.7      7.5      6.6     10.4
bal. 12      17.6     13.2      8.8      6.9      8.3
bal. 13      16.4     16.2      9.2      7.9      8.9
bal. 14      17.7     14.4      8.6      5.8      8.4
bal. 15      19.2     12.5      7.7      5.6      8.2
bal. 16      18.3     13.7      8.6      4.3      8.5
bal. 17      17.8     13.8      8.2      5.5      9.2
bal. 18      19.5     14.2      8.4      5.4     11.1
bal. 19      19.5     12.9      6.8      6.4      8.9
bal. 20      16.9     14.3      8.9        7     11.9
bal. 21      16.9     13.5      8.8        5      9.8
bal. 22      18.6       14      8.4      6.3      9.5
bal. 23      18.2     15.2      9.4      5.3      7.7
bal. 24      17.4     13.7      9.6      4.7      8.9
bal. 25      17.7     15.3      8.1      5.9     11.1
bal. 26      17.7       14     10.2      6.9      8.8
bal. 27      15.8       13     10.1      8.2      9.8
bal. 28      19.1       13      8.2      5.8      7.8
bal. 29      18.5     12.5      9.7      5.3      7.5
bal. 30      18.7     12.7      7.9      5.2      8.4
geg. 1       15.8     14.2     12.5      5.3      9.8
geg. 2       16.7     12.4     11.1        7      9.8
geg. 3       14.4     13.3       10        7      7.7
geg. 4       16.6     14.4      8.8      5.2      6.8
geg. 5       18.6     12.2      8.6      5.9      9.6
geg. 6       18.4     11.7       11      5.3     10.1
geg. 7       20.4     14.3      9.6        6      8.9
geg. 8       20.1     13.8        9      6.4      9.8
geg. 9         16       13     10.5      4.3      8.5
    viso      551      423      282      182      284