los nombres de las columnas:
[1] - Google Chrome
[2] - Yandex.Browser
[3] - Firefox
[4] - Safari 1
[5] - Opera (Blink)
Fecha         [1]      [2]      [3]      [4]      [5]
dic 22       60.1       24      4.6      2.5      3.6
en 23        58.7     23.3      4.9      2.8      3.9
feb 23       52.7     28.3      6.1      2.4        5
mar 23       59.5     23.3      4.8      2.6        4
abr 23       57.4       21      5.5      4.5      3.4
mayo 23      57.3     24.9        5      2.9        4
jun 23       53.7     25.7      6.4      3.2      4.6
jul 23       63.8     17.4      4.1      4.9      5.2
ag 23        64.7     14.1      4.3      5.9      4.8
sept 23      65.4     16.1        4      4.7      5.2
oct 23       64.4     18.3      4.3      2.4      5.8
nov 23       64.8     17.8      4.4      2.4      5.7
dic 23       66.8     16.4      4.4        2      5.4
en 24        66.5     15.8      3.9      3.6        5
feb 24       67.2     16.9      3.7      2.4      5.1
mar 24       66.4     18.1      3.8      1.8      5.3
abr 24       65.3     18.8      3.4      2.7        5
mayo 24      64.9     18.4      3.1      3.8        4
jun 24       64.4     19.9      2.8      3.9      4.1
jul 24       63.5     19.8      3.2        4      4.3
ag 24        59.7     23.3      3.7        3      4.9
sept 24      65.8     18.9      2.5      4.8      3.2
oct 24       61.7     23.1      2.8      3.4      4.6
nov 24       44.6     23.5        2      2.7     24.8
dic 24       53.7     26.4      4.7      2.3      8.3
en 25          66     23.5      1.3      1.1        5
feb 25       54.5       32      1.9      2.8      4.5
mar 25       50.7     14.5      3.9        0     29.6
abr 25       38.8     12.4        0      9.1     35.5
mayo 25      34.9     18.1        0      1.2     42.2
jun 25       56.7       20        0     16.7      6.7