Data          [1]      [2]      [3]      [4]      [5]
bal. 11        64        0        0      4.9        0
bal. 12      78.9        0        0      1.5        0
bal. 13      98.7        0        0        0        0
bal. 14        83        0        0      1.4        0
bal. 15      57.9        0        0      2.5        0
bal. 16      41.4      1.3        0      3.1        0
bal. 17      91.8        0        0     0.61        0
bal. 18      88.3     0.51        0      1.2        0
bal. 19        61        0        0        0        0
bal. 20      64.1        0        0        0        0
bal. 21        58     0.13        0      6.8        0
bal. 22      55.8        0        0      3.1        0
bal. 23      58.3        0        0      4.5        0
bal. 24      53.9        0        0      5.3        0
bal. 25      59.6        0        0        4        0
bal. 26      54.5        0        0      3.2        0
bal. 27      59.3        0        0      5.1        0
bal. 28      57.9        0        0      4.4        0
bal. 29      52.1        0        0      4.7        0
bal. 30      74.5        0        0        3        0
geg. 1       97.9        0        0     0.34        0
geg. 2       59.8        0        0      1.6        0
geg. 3       40.2        0        0      2.1        0
geg. 4       57.2        0        0      3.2        0
geg. 5       91.2        0        0     0.89        0
geg. 6       54.2        0        0      4.7        0
geg. 7       66.1        0        0      4.4        0
geg. 8       55.8        0        0      6.3        0
geg. 9       59.5        0        0      2.6        0
geg. 10      64.2        0        0      2.7        0
geg. 11      37.3        0        0      5.2        0
    viso     1996      1.9        0     93.5        0