| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
1 | 32.3 | 0.0 | 0.8 | 118.2 | 5.4 | | | | | | | |
2 | 56.9 | 0.3 | 18.2 | 116.1 | 63.7 | | | | | | | |
3 | 47.9 | 1.4 | 70.7 | 34.6 | 43.6 | | | | | | | |
4 | 23.1 | 3.3 | 10.2 | 37.5 | 17.5 | | | | | | | |
5 | 49.9 | 0.0 | 20.5 | 29.8 | 15.1 | | | | | | | |
6 | 57.4 | 2.9 | 17.9 | 35.5 | | | | | | | | |
7 | 53.0 | 5.8 | 13.0 | 19.3 | | | | | | | | |
8 | 1.2 | 45.8 | 5.0 | 7.3 | | | | | | | | |
9 | 4.1 | 141.0 | 5.8 | 38.2 | | | | | | | | |
10 | 59.3 | 22.9 | 74.6 | 43.1 | | | | | | | | |
11 | 25.0 | 15.2 | 17.6 | 47.3 | | | | | | | | |
12 | 0.7 | 9.2 | 11.3 | 35.9 | | | | | | | | |
13 | 0.3 | 13.3 | 8.0 | 9.7 | | | | | | | | |
14 | 0.5 | 10.8 | 3.8 | 31.7 | | | | | | | | |
15 | 2.5 | 3.7 | 1.1 | 30.2 | | | | | | | | |
16 | 8.5 | 1.3 | 9.1 | 155.1 | | | | | | | | |
17 | 99.8 | 24.2 | 1.2 | 130.7 | | | | | | | | |
18 | 67.3 | 28.7 | 6.0 | 66.8 | | | | | | | | |
19 | 194.3 | 20.7 | 12.2 | 104.2 | | | | | | | | |
20 | 389.6 | 21.5 | 10.3 | 58.5 | | | | | | | | |
21 | 2.9 | 16.5 | 14.3 | 138.2 | | | | | | | | |
22 | 2.9 | 80.4 | 4.6 | 233.6 | | | | | | | | |
23 | 4.8 | 143.5 | 66.3 | 31.7 | | | | | | | | |
24 | 0.0 | 5.5 | 30.3 | 21.5 | | | | | | | | |
25 | 0.3 | 27.7 | 11.2 | 29.6 | | | | | | | | |
26 | 0.8 | 42.0 | 69.3 | 24.2 | | | | | | | | |
27 | 1.5 | 28.1 | 170.9 | 40.3 | | | | | | | | |
28 | 0.2 | 208.4 | 268.8 | 28.2 | | | | | | | | |
29 | 0.9 | 373.5 | 106.2 | 17.5 | | | | | | | | |
30 | 1.0 | | 116.3 | 0.8 | | | | | | | | |
31 | 3.4 | | 90.9 | | | | | | | | | |