Column titles:
[1] - Moscow
[2] - Kaluga
[3] - Krasnodar
[4] - Tver
Date          [1]      [2]      [3]      [4]
11 May         50        0        0        0
12 May         50        0        0        0
13 May       66.7        0        0        0
14 May         50        0        0        0
15 May         50        0        0        0
16 May        100        0        0        0
17 May          0        0      100        0
18 May         50        0        0        0
19 May         50        0        0        0
20 May         50        0        0        0
21 May         50        0        0        0
22 May         50        0        0        0
23 May       66.7        0        0        0
24 May         50        0        0       50
25 May         50        0        0        0
26 May         50        0        0        0
27 May         25        0        0        0
28 May       33.3        0        0        0
29 May       66.7        0        0        0
30 May          0        0        0        0
31 May          0        0        0        0
1 Jun.          0        0        0        0
2 Jun.          0        0        0        0
3 Jun.        100        0        0        0
4 Jun.          0        0        0        0
5 Jun.        100        0        0        0
6 Jun.          0        0        0        0
7 Jun.        100        0        0        0
8 Jun.          0        0        0        0
9 Jun.          0        0      100        0
10 Jun.         0        0        0        0