Date	1 day	2-3 days	4-7 days	8-14 days	15-31 days
20 Apr.	86.4	7.6	1.5	0	4.5
21 Apr.	86.2	7.7	1.5	0	4.6
22 Apr.	86.2	9.2	0	0	4.6
23 Apr.	86.2	9.2	0	0	4.6
24 Apr.	87.9	7.6	0	0	4.5
25 Apr.	87.9	7.6	0	0	4.5
26 Apr.	87.9	7.6	0	1.5	3
27 Apr.	87.7	7.7	0	1.5	3.1
28 Apr.	89.4	6.1	0	1.5	3
29 Apr.	89.6	6	0	1.5	3
30 Apr.	89.6	6	0	1.5	3
1 May	89.2	4.6	1.5	1.5	3.1
2 May	89.2	4.6	1.5	1.5	3.1
3 May	89.4	4.5	1.5	1.5	3
4 May	90	4.3	1.4	1.4	2.9
5 May	89.9	5.8	0	1.4	2.9
6 May	90	5.7	0	1.4	2.9
7 May	91.4	4.3	0	1.4	2.9
8 May	91.4	4.3	0	1.4	2.9
9 May	91.3	4.3	1.4	0	2.9
10 May	91.4	4.3	1.4	1.4	1.4
11 May	91.2	4.4	1.5	1.5	1.5
12 May	90.5	4.8	1.6	1.6	1.6
13 May	90.5	4.8	1.6	1.6	1.6
14 May	90.3	4.8	1.6	1.6	1.6
15 May	89.8	5.1	1.7	0	3.4
16 May	89.7	5.2	1.7	1.7	1.7
17 May	89.8	5.1	1.7	1.7	1.7
18 May	89.7	5.2	1.7	1.7	1.7
19 May	92.9	1.8	1.8	1.8	1.8
20 May	92.2	2	2	2	2