Column titles:
[1] - from 15 to 30 minutes
[2] - from 30 minutes to 1 hour
[3] - from 1 to 3 hours
[4] - from 3 to 12 hours
[5] - from 12 to 24 hours
[6] - from 1 to 3 days
[7] - from 3 to 7 days
[8] - from 7 to 14 days
[9] - from 14 to 31 days
Date          [1]      [2]      [3]      [4]      [5]      [6]      [7]      [8]      [9]
3 Apr.          2        1        0        1        6        3        0        1        0
4 Apr.          0        0        2        0        5        1        0        0        1
5 Apr.          0        0        1        0        2        0        0        0        0
6 Apr.          0        0        0        0        1        0        0        0        2
7 Apr.          2        2        1        1        1        3        4        0        0
8 Apr.          0        0        2        0        4        0        5        0        1
9 Apr.          2        3        7        1        5        0        2        2        0
10 Apr.         1        2        0        1        4        5        0        1        1
11 Apr.         2        2        1        0        3        2        0        0        0
12 Apr.         0        1        0        0        2        0        0        0        1
13 Apr.         1        0        1        0        1        1        2        0        0
14 Apr.         1        0        1        1        2        2        3        0        0
15 Apr.         1        1        2        1        4        1        1        0        2
16 Apr.         0        2        1        0        5        1        1        0        0
17 Apr.         0        1        1        0        4        2        2        0        0
18 Apr.         0        0        0        0        4        1        1        0        0
19 Apr.         0        0        0        0        2        0        0        0        2
20 Apr.         0        0        0        0        1        1        0        0        1
21 Apr.         1        1        0        0        0        2        3        1        0
22 Apr.         0        1        0        0        3        2        2        1        2
23 Apr.         1        1        3        0        5        1        2        0        3
24 Apr.         1        0        0        1        4        0        0        1        0
25 Apr.         0        0        2        1        3        0        3        1        0
26 Apr.         0        0        0        0        1        0        0        1        1
27 Apr.         0        0        0        0        1        1        0        0        0
28 Apr.         1        0        1        1        2        3        1        0        0
29 Apr.         2        0        1        1        4        1        2        0        0
30 Apr.         1        1        0        0        4        0        2        0        2
1 May           2        1        0        0        1        1        2        2        1
2 May           0        0        0        0        1        1        0        0        0
3 May           1        1        0        1        1        2        0        1        0