los nombres de las columnas:
[1] - Rusia
[2] - Bielorusia
[3] - Kazakistan
[4] - Alemania
[5] - Crimea
Fecha         [1]      [2]      [3]      [4]      [5]
nov 21       74.1      6.4      4.2      1.4        1
dic 21       74.2        6      4.4      1.5      1.1
en 22        71.8      6.4      8.5      1.3      1.1
feb 22       72.1      7.6      6.6      1.2      1.1
mar 22       76.3      7.3      6.3      1.2     0.95
abr 22       74.7      6.9      6.9      1.4     0.96
mayo 22      71.7      9.1      8.9      1.7     0.92
jun 22       73.9      8.1      7.6      1.8      1.1
jul 22       83.8        3      2.2      1.7      1.4
ag 22          85      2.9      1.9      1.5      1.6
sept 22      85.4      2.7      1.9      1.4      1.3
oct 22         85      2.8        2      1.3      1.2
nov 22       84.4      3.1      2.3      1.4      1.3
dic 22       84.6        3      2.2      1.4      1.2
en 23        88.2      2.4      1.5      1.1      1.2
feb 23       89.2      2.1      1.2        1      1.3
mar 23       88.4      2.2      1.4      1.3      1.2
abr 23         88      2.2      1.5      1.4      1.3
mayo 23      87.7      2.4      1.5      1.2      1.3
jun 23       87.8      2.4      1.5      1.5      1.3
jul 23       88.4      2.1      1.3      1.2      1.5
ag 23        86.5      2.4      1.6      1.6      1.4
sept 23      85.4      2.7      1.8      1.6      1.5
oct 23       86.6      2.4      1.5      1.4      1.3
nov 23       87.9      2.2      1.2      1.2      1.3
dic 23       88.5      2.2      1.1      1.2      1.2
en 24        88.9      2.3        1      1.1      1.3
feb 24       89.4      2.3      1.1     0.91      1.3
mar 24       90.1      2.1     0.99     0.77      1.2
abr 24       89.9      2.1     0.99     0.81      1.3
mayo 24      89.7      2.1     0.97     0.84      1.4