Data          [1]      [2]      [3]      [4]
bal. 13        92      4.3      2.2      1.4
bal. 14      91.8      4.6      2.2      1.4
bal. 15      91.6      4.8      2.1      1.4
bal. 16      91.7      4.8      2.2      1.3
bal. 17      91.8      4.6      2.4      1.2
bal. 18      91.9      4.6      2.3      1.2
bal. 19        92      4.6      2.3      1.2
bal. 20      92.1      4.5      2.2      1.3
bal. 21      92.2      4.4      2.3      1.2
bal. 22      92.1      4.5      2.2      1.2
bal. 23      91.9      4.5      2.4      1.2
bal. 24      91.9      4.4      2.4      1.2
bal. 25      91.8      4.6      2.2      1.4
bal. 26      91.6      4.7      2.2      1.5
bal. 27      91.4      4.9      2.3      1.4
bal. 28      91.5      4.9      2.2      1.4
bal. 29      91.4      4.9      2.3      1.4
bal. 30      91.7      4.6      2.3      1.4
geg. 1       91.8      4.5      2.3      1.3
geg. 2       92.1      4.4      2.2      1.3
geg. 3       92.4      4.2      2.1      1.3
geg. 4       92.4      4.4        2      1.3
geg. 5       92.4      4.4        2      1.2
geg. 6       92.5      4.2      2.1      1.2
geg. 7       92.3      4.3      2.2      1.2
geg. 8       92.2      4.5      2.1      1.2
geg. 9       92.1      4.6      2.1      1.2
geg. 10      92.3      4.4      2.1      1.2
geg. 11      92.5      4.1      2.2      1.2
geg. 12      92.4      4.1      2.1      1.3
geg. 13      92.4      4.1      2.2      1.3