les titres des colonnes:
[1] - Opera (Blink)
[2] - Google Chrome
[3] - Yandex.Browser
[4] - Microsoft Edge
[5] - ChromePlus
Date          [1]      [2]      [3]      [4]      [5]
20 oct        4.1     64.5     21.2      2.1      1.4
27 oct       20.2     46.8     23.9      1.8        0
3 nov        16.2     49.6     25.6      2.6        0
10 nov       24.3       50     24.3      1.4        0
17 nov       26.4     37.7     22.6        0        0
24 nov       26.9     49.3     17.9        3        0
1 dec          37     29.6     27.8        0        0
8 dec        19.2     44.2     28.8      1.9        0
15 dec        6.9     54.6     26.4      3.2     0.42
22 dec       26.6     46.9     23.4        0      1.6
29 dec       31.9       34     25.5      2.1        0
5 jan        37.5     46.9     12.5        0        0
12 jan       35.7       31     28.6        0      4.8
19 jan       30.3     33.3     30.3        3        0
26 jan         32       48       12        4        0
2 fev         2.9       60     29.4      2.6     0.41
9 fev         5.7     53.4     31.4        2     0.55
16 fev        7.5     61.8     24.9      1.7      1.2
23 fev       21.1     42.1     26.3      2.6      7.9
2 mar        41.7     37.5     12.5      8.3        0
9 mar        18.6     65.1     11.6        0        0
16 mar         40       15       45        0        0
23 mar       31.7     48.8     12.2        0        0
30 mar       32.3     64.5        0        0        0
6 avr        40.7     44.4     11.1      3.7        0
13 avr       29.4     52.9     11.8      2.9        0
20 avr       34.6     15.4     15.4      3.8        0
27 avr       36.7       40       10      3.3      3.3
4 mai        31.8       50     13.6        0        0
11 mai         45       30       25        0        0
18 mai       53.8     30.8      7.7      7.7        0