Column titles:
[1] - Moscow
[2] - Saint-Petersburg
[3] - Ulan-Ude
[4] - Izhevsk
[5] - Saratov
Date          [1]      [2]      [3]      [4]      [5]
29 Apr.         1        0        1        0        0
30 Apr.         2        0        0        0        0
1 May           2        0        0        1        0
2 May           0        0        0        1        0
3 May           2        0        0        0        0
4 May           2        0        0        0        0
5 May           3        0        0        0        0
6 May           1        0        1        0        0
7 May           2        1        0        0        0
8 May           2        0        1        0        0
9 May           0        0        0        0        0
10 May          1        0        0        0        0
11 May          2        0        0        0        0
12 May          1        0        0        0        0
13 May          2        0        0        0        0
14 May          1        0        2        0        0
15 May          2        0        1        0        0
16 May          2        0        0        0        0
17 May          0        0        0        0        0
18 May          2        0        0        1        0
19 May          2        0        2        0        0
20 May          1        0        2        0        0
21 May          1        1        0        0        0
22 May          2        0        1        0        0
23 May          4        0        0        0        0
24 May          2        0        0        0        0
25 May          1        0        1        0        0
26 May          1        0        1        0        0
27 May          1        0        1        0        0
28 May          1        0        0        1        1
29 May          2        0        2        0        0