| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
1 | | | | | | | | | | | 55.0 | 84.2 | 69.1 | 95.0 | 65.3 | 89.4 | | | | | | | | |
2 | | | | | | | | | | | 53.4 | 76.5 | 70.5 | 93.9 | 67.6 | 94.8 | | | | | | | | |
3 | | | | | | | | | | | 50.0 | 71.2 | 67.5 | 91.6 | 64.6 | 89.4 | | | | | | | | |
4 | | | | | | | | | | | 50.9 | 80.2 | 63.9 | 90.3 | 68.0 | 91.9 | | | | | | | | |
5 | | | | | | | | | | | 52.3 | 57.6 | 61.3 | 86.2 | 68.4 | 81.3 | | | | | | | | |
6 | | | | | | | | | | | 48.4 | 52.3 | 61.5 | 91.2 | 59.5 | 79.5 | | | | | | | | |
7 | | | | | | | | | | | 50.7 | 73.4 | 62.6 | 79.0 | 59.9 | 83.8 | | | | | | | | |
8 | | | | | | | | | | | 48.9 | 81.3 | 62.6 | 91.2 | 63.3 | 79.7 | | | | | | | | |
9 | | | | | | | | | | | 56.7 | 86.4 | 62.6 | 90.9 | 59.2 | 86.5 | | | | | | | | |
10 | | | | | | | | | | | 59.5 | 91.0 | 64.2 | 93.0 | 64.0 | 89.1 | | | | | | | | |
11 | | | | | | | | | | | 65.8 | 97.5 | 69.4 | 89.8 | 86.5 | 86.5 | | | | | | | | |
12 | | | | | | | | | | | 71.1 | 101.8 | 69.3 | 94.3 | 86.5 | 86.5 | | | | | | | | |
13 | | | | | | | | | | | 73.0 | 99.1 | 59.0 | 70.0 | 86.5 | 86.5 | | | | | | | | |
14 | | | | | | | | | | | 61.5 | 79.5 | 59.5 | 73.0 | 68.5 | 89.4 | | | | | | | | |
15 | | | | | | | | | | | 54.3 | 82.2 | 63.7 | 86.2 | 66.6 | 86.4 | | | | | | | | |
16 | | | | | | | | | | | 58.3 | 78.1 | 64.9 | 90.5 | 64.8 | 84.9 | | | | | | | | |
17 | | | | | | | | | | | 59.7 | 81.1 | 68.2 | 91.9 | 57.6 | 84.2 | | | | | | | | |
18 | | | | | | | | | | | 69.3 | 89.1 | 72.1 | 92.5 | 66.6 | 85.6 | | | | | | | | |
19 | | | | | | | | | | | 72.0 | 90.3 | 69.6 | 97.3 | 66.6 | 89.2 | | | | | | | | |
20 | | | | | | | | | | | 70.3 | 91.0 | 69.6 | 96.4 | | | | | | | | | | |
21 | | | | | | | | | | | 65.8 | 88.7 | 68.7 | 95.0 | | | | | | | | | | |
22 | | | | | | | | | 53.2 | 57.4 | 61.5 | 90.9 | 71.8 | 95.0 | | | | | | | | | | |
23 | | | | | | | | | 52.9 | 76.3 | 70.3 | 95.0 | 66.4 | 78.8 | | | | | | | | | | |
24 | | | | | | | | | 54.5 | 72.1 | 71.8 | 92.1 | 57.2 | 66.6 | | | | | | | | | | |
25 | | | | | | | | | 50.5 | 57.2 | 63.7 | 87.3 | 55.9 | 69.6 | | | | | | | | | | |
26 | | | | | | | | | 48.4 | 63.7 | 59.4 | 86.2 | 66.4 | 84.4 | | | | | | | | | | |
27 | | | | | | | | | 52.5 | 70.3 | 57.6 | 81.5 | 61.7 | 80.8 | | | | | | | | | | |
28 | | | | | | | | | 54.5 | 75.4 | 53.2 | 83.8 | 63.9 | 88.5 | | | | | | | | | | |
29 | | | | | | | | 49.1 | 57.9 | 61.5 | 86.4 | 59.0 | 75.6 | | | | | | | | | | |
30 | | | | | | | | 48.9 | 66.4 | 68.7 | 93.2 | 55.4 | 81.1 | | | | | | | | | | |
31 | | | | | | | 36.7 | 74.8 | | 58.1 | 88.0 | | | | | | | | |