Column titles:
[1] - Bookmarks
[2] - yandex.ru
[3] - google.com
[4] - ru.m.wikipedia.org
Date          [1]      [2]      [3]      [4]
13 Apr.        33        3        1        0
14 Apr.        39        3        1        1
15 Apr.        45        3        3        1
16 Apr.        31        4        0        0
17 Apr.        31        4        3        0
18 Apr.        33        5        0        0
19 Apr.        30        2        0        0
20 Apr.        27        1        1        0
21 Apr.        37        2        1        0
22 Apr.        39        3        2        0
23 Apr.        45        3        0        0
24 Apr.        38        6        1        0
25 Apr.        36        4        3        0
26 Apr.        25        2        3        0
27 Apr.        30        3        0        1
28 Apr.        33        4        0        1
29 Apr.        34        3        0        0
30 Apr.        28        1        0        0
1 May          18        1        1        0
2 May          12        1        1        0
3 May          11        4        1        0
4 May          15        3        2        0
5 May          17        4        0        0
6 May          20       11        2        0
7 May          20        2        1        0
8 May          18        7        1        0
9 May          13        5        1        0
10 May         15        0        1        0
11 May         17        3        0        0
12 May         12        6        0        0
13 May         27        2        0        0
   total      829      105       30        4