los nombres de las columnas:
[1] - Rusia
[2] - Bielorusia
[3] - Kazakistan
[4] - Ucrania
[5] - Alemania
Fecha         [1]      [2]      [3]      [4]      [5]
nov 21       73.8      6.4      3.6      3.2      1.7
dic 21       74.2      5.9      3.5      3.1      1.7
en 22        70.4      6.2        9      2.4      1.6
feb 22       68.3      8.3      7.2      2.8      1.7
mar 22       71.9     10.3      7.7     0.59      1.2
abr 22       68.2      9.8        9     0.47      1.6
mayo 22      64.5     12.3     12.5     0.64      1.8
jun 22       67.5     10.8     10.4     0.75        2
jul 22       81.1      3.9      2.1     0.95      2.2
ag 22        81.9      4.2      1.9     0.94        2
sept 22      82.2      3.9      1.9     0.84      1.9
oct 22       82.2      3.9      1.9     0.88      1.8
nov 22         81      4.5      2.2     0.94      1.9
dic 22       80.6      4.5      2.1        1        2
en 23        87.8      2.8      1.2     0.71      1.2
feb 23       88.7      2.6        1     0.65      1.1
mar 23       83.8      3.6      1.7     0.85      1.9
abr 23       82.9      3.6      1.7     0.93        2
mayo 23      83.1      3.7      1.8     0.84      1.7
jun 23         83      3.8      1.8     0.82      2.1
jul 23       83.2      3.6      1.7     0.87      1.8
ag 23        81.7      3.9      1.8     0.89      2.1
sept 23      80.4      4.1        2     0.91      2.1
oct 23       80.7      4.1      1.9     0.92      2.1
nov 23       81.3      4.3      1.8        1      2.1
dic 23       81.5      4.5      1.7     0.99      2.1
en 24          82      4.7      1.7        1      1.8
feb 24       82.4      4.8      1.8        1      1.5
mar 24       83.6      4.4      1.7     0.85      1.3
abr 24       83.5      4.3      1.6     0.92      1.4
mayo 24      83.3      4.2      1.6        1      1.4