Date          [1]      [2]      [3]      [4]
17 May          0        0        0        0
18 May          1        0        0        1
19 May          1        0        0        0
20 May          1        0        0        0
21 May          1        0        0        0
22 May          1        0        0        0
23 May          2        0        1        0
24 May          1        0        0        0
25 May          1        0        0        0
26 May          1        0        0        0
27 May          1        0        0        0
28 May          1        0        0        1
29 May          2        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.          2        0        0        0
4 Jun.          0        0        0        0
5 Jun.          2        0        0        0
6 Jun.          0        1        0        1
7 Jun.          1        0        0        0
8 Jun.          0        0        0        1
9 Jun.          0        0        0        0
10 Jun.         0        0        0        1
11 Jun.         0        0        0        2
12 Jun.         0        0        0        0
13 Jun.         0        0        0        0
14 Jun.         1        0        0        0
15 Jun.         0        0        0        0
16 Jun.         0        0        0        1