Column titles:
[1] - Google Chrome
[2] - Opera (Blink)
Date          [1]      [2]
16 Apr.         0        0
17 Apr.         0        0
18 Apr.         0        0
19 Apr.         0        0
20 Apr.         0        0
21 Apr.         0        0
22 Apr.         0        0
23 Apr.         0        0
24 Apr.         0        0
25 Apr.         0        0
26 Apr.         0        0
27 Apr.         0        0
28 Apr.         0        0
29 Apr.         0        0
30 Apr.         0        0
1 May           0        0
2 May           0        0
3 May           0        0
4 May           0        0
5 May           0        0
6 May           0        0
7 May           0        0
8 May          50       50
9 May           0      100
10 May          0      100
11 May       33.3     66.7
12 May         50       50
13 May       57.1     42.9
14 May          0      100
15 May         20       80
16 May         50       50