Column titles:
[1] - Windows 10
[2] - iOS iPhone
[3] - Android
[4] - MacOS
[5] - Windows 7
Date          [1]      [2]      [3]      [4]      [5]
23 Apr.         2        1        0        0        0
24 Apr.         3        0        1        1        0
25 Apr.         4        0        2        2        0
26 Apr.         1        0        2        0        0
27 Apr.         2        1        0        0        0
28 Apr.         2        0        0        1        0
29 Apr.         2        0        1        0        0
30 Apr.         1        0        1        0        0
1 May           1        0        0        1        0
2 May           0        0        1        1        0
3 May           3        0        1        0        0
4 May           2        0        3        0        0
5 May           1        0        1        0        0
6 May           1        0        1        1        0
7 May           2        0        0        0        0
8 May           3        0        1        0        0
9 May           3        0        0        0        0
10 May          2        0        1        0        0
11 May          1        0        2        0        0
12 May          2        0        0        0        0
13 May          0        0        2        0        1
14 May          2        0        0        0        0
15 May          2        0        0        0        0
16 May          1        0        0        0        0
17 May          0        0        1        0        0
18 May          1        0        0        1        0
19 May          3        0        0        0        0
20 May          2        0        0        0        0
21 May          0        1        1        0        0
22 May          2        0        0        0        0
23 May          3        0        0        0        0