Column titles:
[1] - Windows 10
[2] - Android
[3] - iOS iPhone
[4] - Windows 7
[5] - MacOS
Date          [1]      [2]      [3]      [4]      [5]
13 Oct.      18.3      7.1        2      1.4        1
20 Oct.        21      6.7      1.9      1.9      2.6
27 Oct.      21.3        9      2.7      1.3      1.4
3 Nov.       18.4      8.9        3      1.4      1.9
10 Nov.        15      7.9      2.3      1.3      2.3
17 Nov.      14.7      4.7        2     0.86     0.57
24 Nov.      10.9      4.3        1      1.6      1.3
1 Dec.       13.4      6.7      3.7      1.6        2
8 Dec.       12.6        4        2      1.4      1.4
15 Dec.      14.1      4.6      1.7        1        1
22 Dec.      13.6      4.1      2.3      1.6      1.4
29 Dec.       9.4      5.6        2      1.7      1.6
5 Jan.        4.9      5.3      1.9        1        1
12 Jan.      10.9      4.6      3.4        1     0.57
19 Jan.        25      3.1      2.6        1     12.4
26 Jan.      15.9        5      1.9      1.4      1.9
2 Feb.       12.1      4.7      1.9      2.3      1.9
9 Feb.       15.1      5.6      4.9      2.3      1.3
16 Feb.      15.3      6.9        2      1.4     0.86
23 Feb.      13.1        5      2.1      1.9      1.4
2 Mar.       15.7      6.4      2.1      1.4      1.7
9 Mar.       16.4      3.4      2.3      1.3      1.3
16 Mar.        11     17.3        7      1.6     0.43
23 Mar.        14        6      2.4        1      1.4
30 Mar.      12.9      6.7      2.6     0.86      1.6
6 Apr.       11.1     21.9      2.3      1.7     0.86
13 Apr.      13.4     24.9      2.4        3      1.3
20 Apr.      14.6     18.3      2.1      1.1     0.86
27 Apr.      15.7     18.6      1.6      1.7      1.6
4 May        11.1      8.6     0.86      1.1     0.43
9 May        13.4      6.8        1      1.2      0.6