los nombres de las columnas:
[1] - Rusia
[2] - PaĆ­ses Bajos
[3] - EEUU
[4] - Bielorusia
[5] - China
Fecha         [1]      [2]      [3]      [4]      [5]
dic 22       79.2      3.2      6.2        3      1.9
en 23        76.7      1.9      5.3      3.1      5.1
feb 23       74.5      1.8      7.9        3      3.5
mar 23       72.6      1.3      7.3        4      4.3
abr 23       61.7     0.71      5.7      3.1      3.3
mayo 23      75.9     0.98      5.9      2.7        5
jun 23       75.8     0.99      6.1      3.5      4.3
jul 23       69.4      1.3      4.8        2        6
ag 23        76.6      1.1      4.5      3.1      5.3
sept 23      66.9      1.4      3.5      1.6      2.6
oct 23       62.3      1.3      4.2      1.6      2.6
nov 23       64.2      1.5     12.5      2.4      2.6
dic 23       44.8     0.48     44.7     0.65        1
en 24          76     0.43      6.6     0.36      1.5
feb 24       72.2      1.3      9.7      1.3     0.36
mar 24         64      1.8     15.5     0.98      1.6
abr 24       70.7        2      9.4      1.4      2.8
mayo 24      69.9      1.8     10.4     0.72        2
jun 24       69.5      1.1      8.7      1.6    0.079
jul 24         67     0.38     19.1      0.9     0.15
ag 24        76.3     0.45      9.2     0.72      1.4
sept 24      77.7     0.19      4.4      1.7      1.7
oct 24         78     0.72      6.1      1.8      1.2
nov 24       75.4     0.75      5.5      1.6      1.3
dic 24       68.3     0.56        8      2.1      3.5
en 25        53.4     0.31      6.6      2.2      6.7
feb 25       69.9        0      8.5      2.6      2.9
mar 25         62     0.44      8.7      2.2      3.1
abr 25       46.4      0.4     41.3      1.2     0.48
mayo 25      66.5     0.39     18.6      1.2      1.2
jun 25       67.5        0       20      1.3     0.63