Year | Oct. | Nov. | Dec. | Jan. | Feb. | Mar. | Apr. | May | Jun. | Jul. | Aug. | Sep. | Total |
1928/29 | 38.5 | 50.5 | 88.8 | 160.1 | 554.5 | 390.7 | 273.3 | 200.8 | 115.5 | 71.3 | 50.7 | 45.3 | 2040.1 |
1930/39 | 70.5 | 91.7 | 100.9 | 128.0 | 204.1 | 133.5 | 97.7 | 87.5 | 73.9 | 73.4 | 74.9 | 70.0 | 1206.3 |
1940/49 | 91.5 | 84.2 | 96.9 | 131.7 | 159.8 | 154.3 | 122.8 | 97.8 | 85.1 | 84.6 | 83.7 | 80.4 | 1272.9 |
1950/59 | 68.5 | 82.1 | 111.5 | 131.8 | 138.7 | 137.6 | 92.4 | 63.6 | 49.3 | 48.5 | 51.6 | 53.3 | 1028.8 |
1960/69 | 38.4 | 51.2 | 113.4 | 180.7 | 186.6 | 156.1 | 77.5 | 43.7 | 27.2 | 24.8 | 24.0 | 24.5 | 948.0 |
1970/79 | 29.6 | 40.1 | 53.8 | 79.6 | 84.8 | 100.2 | 79.9 | 33.1 | 27.3 | 25.1 | 24.3 | 23.7 | 601.6 |
1980/89 | 33.4 | 54.5 | 80.7 | 84.9 | 128.4 | 136.6 | 62.3 | 36.7 | 30.5 | 29.5 | 27.6 | 25.5 | 730.5 |
1990/95 | 20.7 | 37.4 | 83.1 | 85.6 | 152.3 | 95.3 | 44.2 | 29.5 | 21.4 | 20.1 | 18.1 | 16.8 | 624.6 |