Data          [1]      [2]      [3]      [4]      [5]
bal. 13      28.6      7.7      1.4      1.2      1.2
bal. 14      27.9        8      1.2      1.2      1.9
bal. 15      27.6      8.1      1.3      1.2      1.9
bal. 16      28.9        8      1.1      1.2      1.9
bal. 17      27.9      7.3        1      1.2      1.8
bal. 18      27.2      7.6      1.3      1.4      1.9
bal. 19      25.9      8.2      1.2      1.6      1.6
bal. 20      29.4      7.8      1.3      1.6      1.5
bal. 21      29.7      7.3     0.95      1.3      1.8
bal. 22      26.9      7.3      1.3      1.4      2.1
bal. 23      27.8      7.8     0.97      1.3        2
bal. 24      26.8      7.9      1.2      1.5        2
bal. 25      27.6      7.6      1.4      1.1      1.7
bal. 26        28      8.6      1.2      1.5      1.4
bal. 27      28.2      8.3      1.3      1.5      1.5
bal. 28      28.5      7.9      1.3      1.2      1.9
bal. 29      28.6      7.8      1.7      1.3      1.8
bal. 30      29.2      7.9      1.5      1.2      1.8
geg. 1       24.7      6.3      1.6      1.3      1.2
geg. 2       26.5      7.6      1.3      1.5      1.2
geg. 3       29.7      8.9      1.4      1.5      1.4
geg. 4       30.4      8.4      1.6      1.6      1.5
geg. 5       28.7      7.8      1.2        1      1.8
geg. 6         29      7.7      1.3      1.5      1.8
geg. 7       30.4      7.7      1.1      1.5      1.8
geg. 8       28.2      8.4      1.3      1.5      1.5
geg. 9         27        8      1.6      1.5      1.7
geg. 10      21.7      8.3      1.8      1.5      1.6
geg. 11      20.6      7.9      1.5      1.5      1.5
geg. 12      19.9      7.7      1.3      1.4      1.8
geg. 13      20.1      7.8      1.2      1.3      1.7
    viso      842      244     41.2     42.7     52.1