los nombres de las columnas:
[1] - MoscĂș
[2] - San Petersburgo
[3] - no definido
[4] - Izhevsk
[5] - Novosibirsk
Fecha         [1]      [2]      [3]      [4]      [5]
dic 22       25.8      6.7      3.5     0.88      4.1
en 23        27.2      6.6      3.5     0.93      4.4
feb 23         26      6.2      3.9     0.87        4
mar 23       27.3      5.9      3.8     0.76      3.7
abr 23         28      5.9      5.1     0.81      4.1
mayo 23        27      6.1      4.4      1.3      3.9
jun 23       28.2      5.8      4.9        1      3.8
jul 23       36.2      2.8     11.6     0.15      5.2
ag 23        27.9     13.9      6.7     0.15      7.2
sept 23      20.7      6.9      5.1     0.38      6.5
oct 23       28.2      4.1      6.2      2.9      2.3
nov 23       27.8      7.3      6.4      5.5      3.3
dic 23       34.9      2.9      7.3      2.2      3.3
en 24        35.9        4      8.4      0.9      3.2
feb 24       39.4      3.6     10.2     0.91      4.4
mar 24       33.6      3.9      9.4     0.96      2.6
abr 24       39.5      3.1      7.4     0.54        8
mayo 24        35      1.8     12.3     0.85     12.3
jun 24       22.8      2.8     13.8      1.9      2.7
jul 24       30.1        3      7.6     0.72      8.8
ag 24          22      3.2     20.1     0.36      1.1
sept 24      21.4      1.9     43.2     0.37     0.67
oct 24       18.2      3.1     41.4     0.44      1.7
nov 24       39.8      2.4      2.8      4.3        2
dic 24       25.8      6.1      3.7      1.6      2.7
en 25        29.7        7      3.4      1.7      2.6
feb 25       23.9      4.2      3.5     0.99      3.4
mar 25       35.8     0.53     0.53     34.2     0.53
abr 25       43.6      1.8     0.91       10     0.91
mayo 25      52.3      2.3      1.2      4.7      4.7
jun 25       57.1        0        0        0     14.3