los nombres de las columnas:
[1] - Otros
[2] - yandex.ru
[3] - Marcador
[4] - google.com
[5] - No definido
Fecha         [1]      [2]      [3]      [4]      [5]
nov 22       34.3     22.6     12.2      4.5      4.1
dic 22       37.8     21.9      9.7      4.5      4.1
en 23        39.3     19.9      9.2        4        4
feb 23       37.2     17.9     15.2      3.7      3.8
mar 23       37.1     20.6     12.1      3.5      3.9
abr 23       35.4     18.3     19.3      3.1      3.7
mayo 23      42.6     18.2      9.1      3.2      4.4
jun 23       47.6     15.3      7.9      2.8      4.5
jul 23       46.6     15.7      8.2      2.5      4.8
ag 23        41.4     14.3     14.1      2.4      4.1
sept 23      39.6     15.7       15      2.6      3.2
oct 23       35.7     18.5     12.7      3.2      3.3
nov 23       34.9     17.7     13.2      3.6      3.3
dic 23         37     18.6     10.2      3.9      3.8
en 24        36.2     17.8     10.4      3.6      3.7
feb 24       32.3     16.9     16.3      3.7      3.9
mar 24       29.2       15     17.3      3.9      4.5
abr 24       26.8     13.8     17.9        4      4.6
mayo 24      24.3       15     17.7      3.9      4.8
jun 24       24.6     13.8     18.4      3.6      4.7
jul 24       28.4     11.6     17.3      2.7      4.7
ag 24        24.3     13.5     17.8      1.7      5.2
sept 24      23.2     14.8       18      1.6      5.6
oct 24         24     13.8     13.1      1.6      5.6
nov 24       23.6     13.4     12.6      1.4      5.4
dic 24       20.8     13.9       14      1.7        6
en 25          19     13.7     13.9        2      5.8
feb 25       17.3     13.3     13.8      2.2      5.7
mar 25       15.7     13.3       13        2      5.9
abr 25       15.3      8.8     10.5        2      6.3
mayo 25      12.7      7.7     10.8        2      6.6