los nombres de las columnas:
[1] - MoscĂș
[2] - San Petersburgo
[3] - Chelyabinsk
[4] - no definido
[5] - Irkutsk
Fecha         [1]      [2]      [3]      [4]      [5]
oct 22       37.5      4.2      4.1        6      3.7
nov 22       25.9      4.5      2.9      4.6        2
dic 22       30.5      4.2      5.4      5.7      2.1
en 23        26.3      3.3      4.4      3.2      1.6
feb 23       30.1      3.9        3      4.1        5
mar 23       35.3      4.6      2.5      7.4      4.5
abr 23       30.2        5      4.7      6.3      2.4
mayo 23      29.8      4.2      3.6      3.3        3
jun 23       24.1      5.7      4.3      5.7      3.9
jul 23       25.9      5.9      3.1      2.8      3.7
ag 23        27.3        4      3.2      3.3      3.9
sept 23      25.5      7.3      4.8      4.4      2.5
oct 23       20.7      5.4      4.5      5.1      4.6
nov 23       17.5      4.6      4.8      4.5      6.6
dic 23       23.1      6.1      3.9      3.1      7.6
en 24        24.5      5.4      4.1      5.1      7.9
feb 24       23.1      4.5      5.2      8.1      5.4
mar 24       28.5        8      4.7      6.6      6.6
abr 24       31.3      4.4      4.4      4.4      4.8
mayo 24        40      4.8      4.4      4.1      3.7
jun 24       35.9       11     0.65      1.1      1.8
jul 24       25.4        8      1.6     25.2        1
ag 24        31.3      4.1      1.2     33.6      5.2
sept 24      18.3      3.6      1.5     26.9     10.5
oct 24       19.1      5.3      2.3     13.2     11.7
nov 24       22.1      6.6      1.7        9      3.4
dic 24       32.1      4.5      6.2      3.6      2.4
en 25        29.8      8.5      4.4      1.4        2
feb 25         34     11.4     0.34     0.85     0.47
mar 25       36.3      7.8      1.1      4.8      1.1
abr 25       29.4      4.8      1.7      3.1      2.2