Date          [1]      [2]      [3]      [4]
18 Apr.         0      100        0        0
19 Apr.      33.3     66.7        0        0
20 Apr.      33.3     66.7        0        0
21 Apr.        20       80        0        0
22 Apr.      33.3     66.7        0        0
23 Apr.         0      100        0        0
24 Apr.      11.1     77.8        0     11.1
25 Apr.      42.9     57.1        0        0
26 Apr.        60       40        0        0
27 Apr.         0      100        0        0
28 Apr.         0      100        0        0
29 Apr.        25       75        0        0
30 Apr.         0      100        0        0
1 May          50       50        0        0
2 May          50       50        0        0
3 May        16.7     83.3        0        0
4 May          40       60        0        0
5 May           0      100        0        0
6 May        14.3     85.7        0        0
7 May        33.3     66.7        0        0
8 May        11.1     88.9        0        0
9 May        14.3     85.7        0        0
10 May       33.3     66.7        0        0
11 May          0      100        0        0
12 May          0      100        0        0
13 May          0     66.7     33.3        0
14 May         50       50        0        0
15 May         50       50        0        0
16 May         20       80        0        0
17 May          0      100        0        0
18 May         20       80        0        0