los nombres de las columnas:
[1] - Rusia
[2] - Bielorusia
[3] - Alemania
[4] - EEUU
[5] - Finlandia
Fecha         [1]      [2]      [3]      [4]      [5]
oct 22        329     31.3      6.4      4.3     0.55
nov 22        338     30.7      7.4      4.5      1.3
dic 22        366     32.2      6.8      4.7      1.2
en 23         371     33.4      7.9      4.6      3.2
feb 23        358     33.3        7      4.1        3
mar 23        350     28.5      7.2      3.9      3.1
abr 23        291     31.5      6.5      3.7      1.7
mayo 23       290     27.5      5.7        4     0.45
jun 23        247     20.5      4.9      3.4     0.37
jul 23        197     15.9      5.3      3.4      1.5
ag 23         188     17.4      6.4      3.4      1.2
sept 23       246     36.1      7.6      2.6        2
oct 23        218     15.5      5.5      4.6      2.2
nov 23        205     13.3      3.3      4.6     0.77
dic 23        207     12.7      3.7      4.4     0.45
en 24         200     12.9      6.5      4.4     0.65
feb 24        157     10.8        8      5.9     0.59
mar 24        125      7.4      6.4      2.1      1.7
abr 24       93.5      7.8      7.4      1.3      2.8
mayo 24        85      4.8      4.4      2.1      1.3
jun 24       68.6      4.4      5.4      2.1     0.97
jul 24       66.8      3.9      6.9      2.1      1.8
ag 24          66      4.6      6.2      1.8      2.2
sept 24      96.4     24.1      3.3      2.3      1.5
oct 24       81.8      5.8      3.1      2.1        1
nov 24       57.7      5.4        3        2      1.2
dic 24       56.4      4.9      3.3      1.2      2.1
en 25        79.5      7.3      1.5      1.4      1.1
feb 25       65.3      5.6      3.4      2.1      3.6
mar 25       41.5      2.8      2.3      1.4      1.2
abr 25       32.3      3.5        3      1.2      1.9