les titres des colonnes:
[1] - Android
[2] - Windows 10
[3] - MacOS/iPhone
[4] - MacOS
[5] - Unix
Date          [1]      [2]      [3]      [4]      [5]
6 oct        58.6       42     22.6      3.4     0.71
13 oct       54.1       48       13      2.1      1.3
20 oct       49.3       43     16.9      2.7     0.86
27 oct         33       36       12      2.4     0.71
3 nov        34.3     39.7     12.9      2.9     0.57
10 nov       32.3     34.3     12.7        2     0.86
17 nov       36.4     35.3       12      2.4     0.86
24 nov       31.3     29.4     12.7        1     0.86
1 dec          32     35.4      8.4        1     0.86
8 dec        31.9     29.9      8.4      2.3      1.3
15 dec         34     38.3     10.3      1.4        1
22 dec       30.9     39.9      9.6      1.3     0.71
29 dec       32.7       36      9.4      1.6     0.86
5 jan        33.4       34      8.1      1.3     0.57
12 jan       31.9     41.1     12.3      1.1        1
19 jan         42     44.6     10.6        2     0.57
26 jan       54.1     62.7     14.3        1     0.43
2 fev        49.3     58.6     14.4      1.6     0.71
9 fev        40.9     43.6     10.1      2.3     0.29
16 fev       45.9     37.9      9.6      1.9     0.71
23 fev         36       41     11.7      1.4        1
2 mar        26.9     32.3      7.9      1.7     0.57
9 mar          23     25.1        7        1     0.14
16 mar       25.1     27.3      5.9      1.4     0.86
23 mar       25.4     24.6      6.1      1.7     0.29
30 mar       24.1     21.1      6.4        2     0.14
6 avr        22.4       21      6.9      1.1     0.57
13 avr       26.3     22.9      5.4      1.1      1.4
20 avr         20     21.7      4.4        1     0.14
27 avr       18.4     19.9      4.7      1.1     0.43
28 avr         22       24        6        0        0