los nombres de las columnas:
[1] - MoscĂș
[2] - San Petersburgo
[3] - Ekaterinburgo
[4] - Novosibirsk
[5] - Nizhni Novgorod
Fecha         [1]      [2]      [3]      [4]      [5]
nov 21       28.6       11      8.6      6.4      4.9
dic 21       30.1     11.1      8.2      6.4      4.7
en 22        30.2     11.3      7.7      6.3      4.4
feb 22       29.8     11.5        8      6.3      4.5
mar 22       29.8     11.2        8      6.7      4.7
abr 22       30.2     10.8      7.9      6.8      4.7
mayo 22      29.3       11      7.8      6.3      4.7
jun 22       29.9     11.1      7.6      6.3      4.6
jul 22       30.3     11.5      7.4      6.2      4.6
ag 22        29.8     10.8      7.7      6.6      4.7
sept 22        30     10.9      7.6      6.3      4.5
oct 22       29.4     11.2      7.8      6.8      4.5
nov 22         30     10.2      7.9      7.2      4.5
dic 22         30     10.2        8      7.1      4.5
en 23        29.9      9.9      7.7      7.1      4.4
feb 23       31.7      9.9      7.2        7      4.3
mar 23       32.5      9.9      7.4      6.7      4.4
abr 23         33     10.3      7.3      6.8      4.3
mayo 23      33.4     10.1      7.5      6.6      4.5
jun 23       33.9     10.1      7.4      6.5      4.5
jul 23         34     10.1      7.4      6.4      4.5
ag 23        34.2      9.9      7.6      6.4      4.4
sept 23      34.7     10.1      7.3      6.4      4.2
oct 23       34.7       10      7.4      6.1      4.3
nov 23       35.6      9.8      7.2      5.6      4.3
dic 23       35.4       10      7.1      5.5      4.3
en 24        35.4     10.3      6.9      5.3      4.2
feb 24       35.2     10.3      7.3      5.6      4.4
mar 24       35.7       11      7.1      5.3      4.3
abr 24       35.2     10.2      7.7      5.6      4.4
mayo 24      34.7     10.4      7.5      5.3      4.4