Column titles:
[1] - Windows 10
[2] - Windows 7
[3] - Android
Date          [1]      [2]      [3]
28 May         60       20       20
29 May         60       20       20
30 May       66.7     16.7     16.7
31 May        100        0        0
1 Jun.         50        0       50
2 Jun.         50       25       25
3 Jun.         50       25       25
4 Jun.         50       25       25
5 Jun.       66.7     33.3        0
6 Jun.       71.4     14.3     14.3
7 Jun.        100        0        0
8 Jun.        100        0        0
9 Jun.         75       25        0
10 Jun.        75       25        0
11 Jun.      66.7     33.3        0
12 Jun.       100        0        0
13 Jun.       100        0        0
14 Jun.       100        0        0
15 Jun.       100        0        0
16 Jun.        75       25        0
17 Jun.      66.7     33.3        0
18 Jun.        75       25        0
19 Jun.      66.7     33.3        0
20 Jun.        60       20        0
21 Jun.        50        0       50
22 Jun.       100        0        0
23 Jun.      71.4     28.6        0
24 Jun.        80       20        0
25 Jun.        75       25        0
26 Jun.        75       25        0
27 Jun.      66.7     33.3        0