Date          [1]
6 May           0
7 May         100
8 May           0
9 May           0
10 May          0
11 May          0
12 May        100
13 May          0
14 May          0
15 May        100
16 May          0
17 May        100
18 May          0
19 May          0
20 May         50
21 May        100
22 May          0
23 May          0
24 May          0
25 May          0
26 May        100
27 May          0
28 May         50
29 May          0
30 May          0
31 May          0
1 Jun.        100
2 Jun.          0
3 Jun.         50
4 Jun.          0
5 Jun.         50
   total      900