| Jan | Feb | March | April | May | June | July | Aug | Sept | Oct | Nov | Dec |
|---|
| 1 | 18.0 | 19.6 | 16.4 | 12.4 | 12.1 | 1.5 | -1.7 | 4.8 | 3.2 | 4.6 | -1.2 | 13.3 |
|---|
| 2 | 20.9 | 15.1 | 17.4 | 8.9 | 7.6 | 2.8 | 6.3 | 1.0 | 8.1 | 10.7 | 0.6 | 15.7 |
|---|
| 3 | 19.6 | 10.8 | 15.9 | 9.3 | 8.4 | 6.1 | 1.6 | 6.0 | 5.0 | 4.8 | 3.6 | 15.0 |
|---|
| 4 | 17.6 | 13.7 | 13.0 | 13.4 | 11.0 | 10.7 | -0.2 | 7.4 | 5.1 | 4.7 | 8.2 | 15.3 |
|---|
| 5 | 16.4 | 17.4 | 16.2 | 10.3 | 6.3 | 6.1 | -2.1 | 8.7 | 1.6 | 5.9 | 4.3 | 11.9 |
|---|
| 6 | 13.0 | 14.5 | 17.0 | 9.0 | 10.2 | 0.9 | -1.2 | 6.2 | 2.7 | 8.5 | 7.1 | 6.2 |
|---|
| 7 | 12.2 | 15.2 | 8.5 | 8.5 | 6.1 | -1.1 | 2.1 | 6.9 | 1.2 | 7.5 | 11.1 | 5.3 |
|---|
| 8 | 14.0 | 14.8 | 12.3 | 9.4 | 3.3 | 2.1 | 8.4 | 10.0 | 2.0 | 7.7 | 15.8 | 6.2 |
|---|
| 9 | 14.3 | 16.8 | 7.2 | 9.1 | 5.2 | 0.3 | 2.9 | 5.6 | 0.0 | 6.3 | 16.9 | 9.8 |
|---|
| 10 | 17.6 | 19.5 | 10.4 | 5.5 | 4.7 | 0.5 | 2.2 | 1.4 | -3.0 | 4.6 | 7.5 | 13.9 |
|---|
| 11 | 21.2 | 21.7 | 11.4 | -1.1 | 8.3 | 0.8 | -1.5 | 5.6 | 3.6 | 5.3 | 11.7 | 15.0 |
|---|
| 12 | 20.3 | 25.2 | 10.0 | 1.2 | 12.3 | 4.9 | 1.0 | 2.7 | 4.9 | 2.0 | 11.7 | 14.0 |
|---|
| 13 | 18.2 | 25.2 | 13.4 | 4.5 | 12.1 | 9.2 | 1.0 | -2.2 | 2.5 | -0.7 | 11.7 | 17.3 |
|---|
| 14 | 17.4 | 21.7 | 12.9 | 10.3 | 11.1 | 6.2 | 0.3 | 5.3 | 1.6 | -0.5 | 11.7 | 14.2 |
|---|
| 15 | 19.2 | 18.0 | 8.8 | 10.6 | 13.2 | 2.4 | 1.3 | 6.7 | 3.8 | 1.5 | 9.5 | 10.4 |
|---|
| 16 | 19.3 | 17.3 | 14.3 | 12.7 | 10.6 | 4.5 | 7.1 | 2.0 | 4.7 | 4.3 | 11.7 | 15.3 |
|---|
| 17 | 17.1 | 20.5 | 11.6 | 10.7 | 6.9 | 5.4 | 3.3 | 5.0 | 8.5 | 4.1 | 11.6 | 15.2 |
|---|
| 18 | 17.6 | 20.7 | 13.2 | 4.7 | 3.7 | 5.0 | 0.0 | 2.6 | 9.1 | 4.9 | 11.9 | 16.3 |
|---|
| 19 | 19.1 | 21.2 | 13.1 | 3.1 | 8.7 | 5.5 | 0.4 | -1.4 | 7.3 | 1.9 | 7.0 | 14.4 |
|---|
| 20 | 18.8 | 24.0 | 9.1 | 7.5 | 4.6 | 4.3 | 2.4 | 0.2 | 11.7 | 6.1 | 5.9 | 14.6 |
|---|
| 21 | 22.9 | 17.4 | 10.5 | 11.1 | 9.0 | 3.8 | 0.3 | 4.7 | 7.6 | 7.1 | 4.9 | 15.3 |
|---|
| 22 | 21.7 | 13.8 | 13.8 | 4.7 | 4.9 | 1.2 | 4.4 | 5.0 | 5.9 | 5.9 | 6.3 | 13.7 |
|---|
| 23 | 22.8 | 13.6 | 13.4 | 0.8 | 2.9 | -3.5 | 1.1 | 1.9 | 6.4 | 6.6 | 10.1 | 12.9 |
|---|
| 24 | 19.3 | 10.2 | 10.8 | 4.6 | -0.5 | 0.8 | -1.7 | 1.6 | 3.1 | 6.8 | 11.9 | 14.2 |
|---|
| 25 | 18.8 | 14.7 | 16.2 | 3.3 | 3.5 | 1.7 | 0.5 | -1.6 | 4.4 | 10.5 | 14.7 | 16.3 |
|---|
| 26 | 21.4 | 10.3 | 11.9 | 4.0 | 0.9 | -1.6 | 2.0 | 1.1 | 2.2 | 7.9 | 16.1 | 14.6 |
|---|
| 27 | 21.7 | 13.5 | 12.6 | 2.3 | 0.5 | -1.4 | -0.1 | -1.1 | 3.4 | 8.1 | 13.2 | 15.7 |
|---|
| 28 | 19.6 | 16.7 | 16.3 | 10.5 | -2.0 | -0.9 | 4.8 | 0.8 | 5.0 | 14.0 | 13.2 | 15.3 |
|---|
| 29 | 21.5 | | 14.1 | 15.1 | 0.7 | 0.1 | 2.3 | 4.3 | 1.9 | 10.0 | 10.8 | 13.9 |
|---|
| 30 | 19.1 | | 13.4 | 14.8 | 2.4 | -1.2 | 0.5 | 5.5 | 2.1 | 7.1 | 15.3 | 15.1 |
|---|
| 31 | 18.6 | | 10.5 | | 5.9 | | -1.9 | 6.4 | | 5.4 | | 17.1 |
|---|
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