| Jan | Feb | March | April | May | June | July | Aug | Sept | Oct | Nov | Dec |
1 | 15.3 | 16.6 | 13.5 | 12.3 | 4.9 | 14.5 | 2.5 | -1.1 | 2.1 | 7.3 | 13.2 | 0.5 |
2 | 13.3 | 15.4 | 12.4 | 15.8 | 7.4 | 10.6 | -0.8 | 2.4 | 3.2 | 11.1 | 12.4 | 8.8 |
3 | 12.9 | 18.2 | 12.0 | 14.7 | 7.9 | 8.6 | -1.0 | 8.4 | 5.2 | 4.2 | 17.1 | 9.1 |
4 | 13.9 | 15.0 | 8.1 | 12.9 | 7.1 | 7.2 | -0.3 | 4.9 | 6.6 | 7.1 | 12.6 | 7.8 |
5 | 17.1 | 18.6 | 9.3 | -6.3 | 7.3 | 2.6 | 2.5 | 1.7 | 2.1 | 5.4 | 10.3 | 12.6 |
6 | 13.4 | 15.2 | 10.1 | 17.5 | 5.4 | 4.3 | 4.7 | 0.7 | -2.9 | -0.4 | 9.9 | 10.5 |
7 | 11.2 | 17.2 | 12.6 | 8.9 | 6.9 | 9.5 | -0.2 | 10.8 | -1.3 | -0.8 | 11.1 | 10.7 |
8 | 10.8 | 21.4 | 17.3 | 4.1 | 5.6 | 11.4 | 8.7 | 9.0 | 6.3 | 2.6 | 9.3 | 11.1 |
9 | 12.9 | 20.1 | 16.8 | 8.0 | 6.9 | 8.5 | 11.7 | 6.7 | 3.9 | 3.5 | 12.3 | 13.2 |
10 | 18.0 | 22.9 | 12.9 | 5.0 | 6.6 | 9.4 | 6.5 | 4.0 | 7.9 | 8.7 | 11.1 | 19.5 |
11 | 17.5 | 23.0 | 9.4 | 6.2 | 4.1 | 7.7 | 7.7 | 2.7 | 8.5 | 6.7 | 11.0 | 20.6 |
12 | 18.2 | 21.9 | 10.2 | 10.6 | 9.0 | 8.6 | 8.8 | 1.9 | 10.4 | 10.0 | 16.0 | 18.4 |
13 | 12.1 | 11.0 | 9.8 | 5.4 | 5.5 | 5.6 | 10.3 | -1.5 | 8.7 | 7.9 | 14.9 | 18.7 |
14 | 12.4 | 13.8 | 12.5 | 6.9 | 2.9 | 6.1 | 8.5 | -2.0 | 6.0 | 7.7 | 14.4 | 14.7 |
15 | 15.5 | 12.6 | 11.0 | 5.5 | 10.6 | 8.6 | 4.4 | -1.5 | 3.2 | 8.0 | 15.2 | 18.7 |
16 | 15.6 | 10.3 | 11.6 | 6.1 | 12.6 | 7.0 | 2.4 | 3.2 | -0.2 | 8.2 | 13.0 | 17.8 |
17 | 16.4 | 16.9 | 9.7 | 8.6 | 10.0 | 9.7 | -0.6 | 13.4 | 5.1 | 4.7 | 15.5 | 19.7 |
18 | 13.4 | 16.3 | 11.0 | 11.1 | 14.0 | 7.2 | -1.0 | 13.0 | 5.5 | 9.9 | 15.3 | 16.3 |
19 | 13.6 | 16.0 | 12.5 | 14.6 | 11.5 | 5.7 | 7.5 | 15.6 | 6.6 | 1.7 | 14.9 | 15.8 |
20 | 18.2 | 18.0 | 10.7 | 13.0 | 6.1 | 3.0 | 10.3 | 16.2 | 13.4 | 7.2 | 15.2 | 15.7 |
21 | 15.2 | 18.0 | 11.8 | 16.6 | 3.7 | 3.7 | 2.1 | 10.6 | 11.6 | 5.8 | 13.4 | 16.0 |
22 | 11.1 | 15.6 | 16.9 | 9.4 | 6.2 | 4.7 | 2.0 | 10.3 | 9.3 | 4.7 | 12.2 | 14.8 |
23 | 14.8 | 15.8 | 17.8 | 6.0 | 5.1 | 2.0 | 4.5 | 8.4 | 12.0 | 1.9 | 12.7 | 11.6 |
24 | 20.1 | 12.4 | 14.0 | 3.5 | 0.3 | -1.0 | 3.7 | 5.0 | 9.9 | 6.6 | 11.4 | 15.4 |
25 | 19.3 | 12.8 | 8.6 | 9.4 | 1.5 | 5.8 | 6.8 | 4.6 | 7.5 | 7.6 | 8.2 | 13.8 |
26 | 19.1 | 11.3 | 6.5 | 5.6 | 5.1 | 5.3 | 10.5 | 5.3 | 7.8 | 8.4 | 7.8 | 17.5 |
27 | 12.1 | 12.5 | 7.0 | 7.0 | 2.5 | 1.6 | 10.2 | 1.0 | 9.1 | 9.2 | 12.2 | 15.0 |
28 | 12.1 | 10.9 | 5.8 | 10.1 | 6.7 | 2.4 | 9.7 | 5.9 | 6.4 | 11.8 | 11.6 | 13.1 |
29 | 9.0 | | 12.0 | 10.0 | 1.4 | -0.1 | 8.0 | 6.0 | 8.9 | 15.3 | 9.3 | 11.8 |
30 | 14.8 | | 15.0 | 8.3 | 10.1 | 5.2 | 6.5 | 4.4 | 9.0 | 16.9 | 12.1 | 13.6 |
31 | 18.8 | | 13.9 | | 12.2 | | 1.9 | 1.4 | | 16.7 | | 12.0 |
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