los nombres de las columnas:
[1] - Rusia
[2] - Crimea
[3] - Ucrania
[4] - Moldavia
[5] - Bielorusia
Fecha         [1]      [2]      [3]      [4]      [5]
oct 22       55.2      3.3     12.3      4.9      6.6
nov 22       56.9      5.2      8.4      6.4      7.4
dic 22       59.6      4.6      6.3      5.2     10.7
en 23        64.7      5.5      4.3        3      7.6
feb 23       63.7      5.5      6.9      1.6      7.7
mar 23       63.8      6.6      7.9      2.1      9.1
abr 23       66.1      4.6      4.8      2.6      8.9
mayo 23      66.3      3.9      5.6      1.2     10.8
jun 23       60.5      8.2      7.1      1.3      7.4
jul 23       58.6      4.9      6.3      1.4      9.5
ag 23        59.4      5.2      5.9      2.3     11.1
sept 23      64.3      6.6      5.5      2.4      8.3
oct 23       50.7      8.1      6.7      3.1     12.2
nov 23       47.8       10      5.3      3.1     12.2
dic 23       49.8        9        6      3.7     13.1
en 24        51.4     10.5      5.7      2.9      8.9
feb 24         47      6.9      7.6        4      7.3
mar 24       53.5      8.3      7.8      7.3      5.9
abr 24       49.6      9.8        9      5.1      7.6
mayo 24      51.4      6.7      9.9      5.3      4.8
jun 24       80.4      2.5      3.2      1.3      1.9
jul 24       75.5      2.1      3.7      2.6      2.3
ag 24        65.4      4.7        7        2      4.5
sept 24      58.2      4.2      8.9      4.4      5.3
oct 24       51.4      7.3      9.5     10.4      5.9
nov 24         52     10.4       10        9      5.6
dic 24         57      9.5      7.2      7.6      6.5
en 25        55.2      8.5        8      7.2        8
feb 25         92      1.8      1.5      1.4      1.1
mar 25       53.7     10.6      9.2      8.3      6.2
abr 25       62.2      6.2        6      5.3        6