| Jan | Feb | March | April | May | June | July | Aug | Sept | Oct | Nov | Dec |
|---|
| 1 | 18.9 | 27.9 | 28.4 | 25.7 | 19.9 | 18.9 | 14.9 | 11.1 | 19.9 | 21.0 | 17.2 | 30.5 |
|---|
| 2 | 22.6 | 22.5 | 25.5 | 20.2 | 14.3 | 18.8 | 14.8 | 13.6 | 19.5 | 16.2 | 23.9 | 31.1 |
|---|
| 3 | 26.3 | 23.6 | 29.3 | 25.0 | 15.8 | 19.2 | 19.4 | 12.1 | 14.8 | 19.4 | 15.0 | 23.6 |
|---|
| 4 | 16.4 | 24.5 | 25.7 | 26.3 | 14.4 | 22.7 | 22.5 | 11.5 | 19.4 | 21.1 | 19.8 | 19.4 |
|---|
| 5 | 16.8 | 22.9 | 18.2 | 26.8 | 14.3 | 23.0 | 16.3 | 14.2 | 19.2 | 18.8 | 19.8 | 26.5 |
|---|
| 6 | 16.2 | 15.9 | 18.6 | 25.4 | 19.1 | 12.0 | 12.5 | 14.3 | 18.5 | 20.0 | 21.9 | 29.4 |
|---|
| 7 | 19.8 | 25.8 | 20.9 | 25.3 | 22.4 | 11.0 | 11.4 | 15.5 | 18.7 | 22.0 | 27.0 | 31.7 |
|---|
| 8 | 20.9 | 28.8 | 23.6 | 23.9 | 22.6 | 14.7 | 11.2 | 17.0 | 13.3 | 21.5 | 31.4 | 35.0 |
|---|
| 9 | 18.5 | 29.6 | 20.5 | 18.9 | 23.0 | 13.9 | 11.5 | 10.7 | 15.8 | 20.3 | 28.5 | 31.5 |
|---|
| 10 | 18.1 | 25.2 | 22.7 | 20.6 | 21.7 | 13.1 | 16.6 | 9.7 | 21.7 | 24.7 | 30.0 | 31.4 |
|---|
| 11 | 19.8 | 20.0 | 24.9 | 23.3 | 15.6 | 20.4 | 15.8 | 12.3 | 17.1 | 26.1 | 27.3 | 23.5 |
|---|
| 12 | 17.6 | 22.2 | 26.3 | 23.0 | 19.0 | 15.8 | 18.7 | 12.7 | 10.7 | 24.1 | 19.4 | 21.1 |
|---|
| 13 | 18.7 | 22.8 | 19.9 | 19.0 | 20.7 | 20.1 | 18.4 | 12.1 | 17.9 | 26.2 | 29.2 | 20.4 |
|---|
| 14 | 19.1 | 23.9 | 21.0 | 26.1 | 16.2 | 12.6 | 15.9 | 15.0 | 14.7 | 19.0 | 22.3 | 23.5 |
|---|
| 15 | 18.7 | 24.1 | 27.7 | 17.7 | 19.4 | 14.6 | 17.1 | 16.5 | 19.8 | 18.8 | 24.8 | 28.4 |
|---|
| 16 | 18.8 | 22.0 | 27.5 | 17.5 | 22.7 | 11.8 | 17.1 | 17.2 | 21.4 | 22.4 | 20.9 | 26.8 |
|---|
| 17 | 20.6 | 26.7 | 28.5 | 19.3 | 21.7 | 12.7 | 10.6 | 13.0 | 18.7 | 19.3 | 26.2 | |
|---|
| 18 | 20.9 | 32.6 | 26.6 | 22.5 | 21.2 | 15.2 | 12.0 | 17.8 | 22.1 | 23.9 | 28.0 | |
|---|
| 19 | 21.1 | 27.5 | 24.2 | 26.7 | 16.0 | 17.6 | 14.6 | 15.7 | 14.0 | 22.7 | 24.7 | |
|---|
| 20 | 21.2 | 31.4 | 18.5 | 26.0 | 17.1 | 17.9 | 12.8 | 10.4 | 16.4 | 24.3 | 30.4 | |
|---|
| 21 | 22.5 | 29.8 | 20.6 | 25.2 | 15.6 | 13.5 | 11.6 | 12.2 | 17.6 | 25.8 | 29.4 | |
|---|
| 22 | 18.4 | 25.3 | 25.4 | 16.9 | 16.6 | 13.7 | 12.8 | 11.2 | 20.4 | 23.0 | 29.0 | |
|---|
| 23 | 24.8 | 26.0 | 25.5 | 16.2 | 17.1 | 11.8 | 11.6 | 13.1 | 22.3 | 27.0 | 25.3 | |
|---|
| 24 | 22.5 | 24.9 | 24.2 | 15.8 | 18.4 | 15.7 | 14.6 | 16.1 | 20.4 | 22.5 | 20.6 | |
|---|
| 25 | 30.0 | 30.0 | 24.8 | 17.9 | 19.7 | 17.9 | 15.5 | 16.2 | 20.9 | 20.6 | 23.8 | |
|---|
| 26 | 28.7 | 27.1 | 22.0 | 19.9 | 20.2 | 17.7 | 15.2 | 16.0 | 20.0 | 22.4 | 29.3 | |
|---|
| 27 | 22.7 | 23.8 | 26.9 | 19.8 | 20.5 | 19.5 | 16.0 | 13.0 | 21.8 | 22.4 | 30.5 | |
|---|
| 28 | 20.5 | 23.6 | 22.4 | 25.0 | 19.6 | 20.6 | 17.3 | 18.5 | 24.1 | 24.4 | 29.6 | |
|---|
| 29 | 28.1 | | 21.5 | 21.9 | 20.8 | 17.7 | 17.5 | 18.7 | 23.7 | 21.7 | 29.2 | |
|---|
| 30 | 26.2 | | 25.9 | 21.1 | 20.4 | 17.6 | 15.8 | 20.6 | 18.1 | 19.3 | | |
|---|
| 31 | 26.1 | | 22.5 | | 20.5 | | 15.9 | 19.0 | | 22.4 | | |
|---|
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