Column titles:
[1] - Opera (Blink)
[2] - Mobile Safari
[3] - Google Chrome
[4] - Yandex.Browser
Date          [1]      [2]      [3]      [4]
28 Apr.        25        0       50        0
29 Apr.      66.7        0     33.3        0
30 Apr.        50        0        0       50
1 May          50        0       50        0
2 May           0        0      100        0
3 May          25        0       75        0
4 May          20        0       40       40
5 May          50        0        0       50
6 May        33.3        0     33.3     33.3
7 May          50        0       50        0
8 May          75        0       25        0
9 May        33.3        0     33.3     33.3
10 May       33.3        0     33.3     33.3
11 May       33.3        0     33.3     33.3
12 May         50        0        0       50
13 May          0        0     66.7        0
14 May        100        0        0        0
15 May        100        0        0        0
16 May        100        0        0        0
17 May          0        0      100        0
18 May         50        0       50        0
19 May       66.7        0        0     33.3
20 May        100        0        0        0
21 May          0       50       50        0
22 May        100        0        0        0
23 May         25        0       50        0
24 May       66.7        0        0     33.3
25 May       66.7        0     33.3        0
26 May        100        0        0        0
27 May       28.6        0     42.9     28.6
28 May          0        0      100        0