Date	1 day	2 days	3-4 days	5-7 days
24 Nov.	74.8	9.7	6.9	8.5
1 Dec.	73.3	10	7.6	9.1
8 Dec.	72.9	10.2	7.5	9.4
15 Dec.	73.8	9.9	7.2	9.1
22 Dec.	73.9	10	7.3	8.8
29 Dec.	74.2	9.8	7.1	8.9
5 Jan.	75.2	9.7	6.8	8.3
12 Jan.	76.2	9.6	6.1	8.1
19 Jan.	74.9	9.7	6.9	8.6
26 Jan.	74.5	9.7	7.1	8.8
2 Feb.	74.2	9.6	7.1	9
9 Feb.	74.3	9.7	7.2	8.8
16 Feb.	74.7	9.8	7.3	8.2
23 Feb.	74.4	9.7	7.2	8.8
2 Mar.	74.7	9.5	7.1	8.8
9 Mar.	75.2	9.3	6.9	8.5
16 Mar.	73.7	9.9	7.4	9
23 Mar.	73.8	9.8	7.3	9.1
30 Mar.	74	9.8	7.2	9
6 Apr.	73.6	9.9	7.5	9
13 Apr.	73.7	9.8	7.5	9
20 Apr.	74	9.8	7.4	8.8
27 Apr.	74.6	9.6	7.3	8.5
4 May	74.4	10	7.6	8
11 May	73.9	10.6	7.9	7.5
18 May	74.6	9.8	7.3	8.3
25 May	73.9	9.9	7.4	8.7
1 Jun.	76.3	9.2	6.8	7.7
8 Jun.	75.9	9.4	6.9	7.8
15 Jun.	75	9.9	7.3	7.8
20 Jun.	74.8	10	7.2	8