los nombres de las columnas:
[1] - Yandex
[2] - Google
[3] - Search.Mail.ru
[4] - Yandex (imágenes)
Fecha         [1]      [2]      [3]      [4]
nov 22         78     20.6      1.4        0
dic 22       77.4     17.7        4     0.88
en 23        74.6     23.4      1.7     0.34
feb 23         84     12.8      2.4      0.8
mar 23       80.3     17.8      1.6     0.33
abr 23       66.9     32.6     0.52        0
mayo 23      89.9      9.8     0.36        0
jun 23       84.2     15.5     0.27        0
jul 23       90.8      8.7     0.48        0
ag 23        88.3     11.5     0.26        0
sept 23      84.4     15.6        0        0
oct 23       78.1     21.5        0        0
nov 23       83.5     15.5     0.67        0
dic 23       90.1      9.9        0        0
en 24        87.5     11.7        0     0.37
feb 24       87.4     11.9        0      0.7
mar 24       84.8     15.2        0        0
abr 24       85.3     14.7        0        0
mayo 24      88.6     10.7        0     0.69
jun 24       84.5     15.2        0        0
jul 24       88.7     11.3        0        0
ag 24        88.2     11.6        0     0.29
sept 24      90.2      9.8        0        0
oct 24       82.3     17.4        0     0.27
nov 24       76.1     23.9        0        0
dic 24         74     24.9        0      1.2
en 25        78.9     20.5        0     0.53
feb 25       73.4     25.2        0      1.4
mar 25       75.9     23.7        0     0.45
abr 25       71.8     27.2     0.47     0.47
mayo 25      81.4     18.6        0        0