| SEASON | JULY | AUG | SEPT | OCT | NOV | DEC | JAN | FEB | MAR | APRIL | MAY | JUNE | Season Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1863/1864 | 0.0 | 0.0 | 0.0 | 3.0 | 0.3 | 4.8 | 3.5 | 2.0 | 3.0 | 0.0 | 0.0 | 0.0 | 16.6 |
| 1864/1865 | 0.0 | 0.0 | 0.0 | 0.0 | 8.0 | 15.0 | 6.5 | 9.5 | 3.0 | 1.0 | 0.0 | 0.0 | 43.0 |
| 1865/1866 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 9.8 | 6.5 | 14.0 | 6.3 | 0.0 | 4.0 | 0.0 | 40.6 |
| 1866/1867 | 0.0 | 0.0 | 0.0 | 0.0 | 7.0 | 8.5 | 16.0 | 11.0 | 11.0 | 8.0 | 0.0 | 0.0 | 61.5 |
| 1867/1868 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 6.0 | 10.5 | 14.0 | 12.3 | 6.0 | 0.0 | 0.0 | 48.8 |
| 1868/1869 | 0.0 | 0.0 | 0.0 | 0.0 | 3.0 | 13.5 | 4.0 | 14.5 | 9.0 | 3.5 | 0.0 | 0.0 | 47.5 |
| 1869/1870 | 0.0 | 0.0 | 0.0 | 5.5 | 18.5 | 6.5 | 9.5 | 8.0 | 18.0 | 0.0 | 0.0 | 0.0 | 66.0 |
| 1870/1871 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 18.5 | 17.5 | 18.0 | 2.6 | 0.0 | 0.0 | 0.0 | 56.6 |
| 1871/1872 | 0.0 | 0.0 | 0.0 | 0.0 | 5.0 | 11.5 | 9.5 | 5.0 | 12.0 | 3.5 | 0.0 | 0.0 | 46.5 |
| 1872/1873 | 0.0 | 0.0 | 0.0 | 0.0 | 1.0 | 11.5 | 26.5 | 8.5 | 15.8 | 4.0 | 0.0 | 0.0 | 67.3 |
| 1873/1874 | 0.0 | 0.0 | 0.0 | 6.0 | 15.5 | 4.5 | 12.5 | 3.0 | 0.8 | 7.1 | 0.0 | 0.0 | 49.4 |
| 1874/1875 | 0.0 | 0.0 | 0.0 | 0.3 | 7.5 | 2.5 | 9.0 | 17.5 | 23.5 | 1.0 | 3.0 | 0.0 | 64.3 |
| 1875/1876 | 0.0 | 0.0 | 0.0 | 0.6 | 2.8 | 6.5 | 2.3 | 2.2 | 30.0 | 0.0 | 0.0 | 0.0 | 44.4 |
| 1876/1877 | 0.0 | 0.0 | 0.0 | 0.0 | 1.0 | 17.5 | 17.1 | 0.0 | 34.8 | 0.0 | 0.0 | 0.0 | 70.4 |
| 1877/1878 | 0.0 | 0.0 | 0.0 | 0.0 | 8.5 | 2.5 | 14.4 | 6.4 | 1.0 | 0.0 | 0.0 | 0.0 | 32.8 |
| 1878/1879 | 0.0 | 0.0 | 0.0 | 1.0 | 9.0 | 22.0 | 6.8 | 11.7 | 1.3 | 0.8 | 0.0 | 0.0 | 52.6 |
| 1879/1880 | 0.0 | 0.0 | 0.0 | 0.0 | 10.8 | 6.1 | 1.4 | 2.0 | 0.0 | 2.0 | 0.0 | 0.0 | 22.3 |
| 1880/1881 | 0.0 | 0.0 | 0.0 | 3.0 | 16.5 | 6.0 | 30.4 | 19.0 | 17.0 | 5.3 | 0.0 | 0.0 | 97.2 |
| 1881/1882 | 0.0 | 0.0 | 0.0 | 0.0 | 5.0 | 1.0 | 6.5 | 5.0 | 9.1 | 0.0 | 0.0 | 0.0 | 26.6 |
| 1882/1883 | 0.0 | 0.0 | 0.0 | 0.0 | 4.0 | 9.0 | 10.0 | 12.0 | 8.5 | 2.5 | 0.0 | 0.0 | 46.0 |
| 1883/1884 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 8.0 | 15.8 | 8.0 | 6.5 | 0.3 | 0.0 | 0.0 | 38.6 |
| 1884/1885 | 0.0 | 0.0 | 0.0 | 0.0 | 1.8 | 20.5 | 18.5 | 9.5 | 7.3 | 8.0 | 0.0 | 0.0 | 65.6 |
| 1885/1886 | 0.0 | 0.0 | 0.0 | 0.0 | 2.5 | 11.0 | 19.5 | 7.0 | 7.5 | 5.0 | 0.0 | 0.0 | 52.5 |
| 1886/1887 | 0.0 | 0.0 | 0.0 | 0.0 | 3.5 | 15.5 | 16.0 | 10.3 | 9.0 | 3.5 | 0.0 | 0.0 | 57.8 |
| 1887/1888 | 0.0 | 0.0 | 0.0 | 0.1 | 2.5 | 13.0 | 9.0 | 4.0 | 4.5 | 0.3 | 0.0 | 0.0 | 33.4 |
| 1888/1889 | 0.0 | 0.0 | 0.0 | 0.0 | 3.3 | 2.3 | 7.5 | 13.0 | 5.0 | 1.0 | 0.0 | 0.0 | 32.1 |
| 1889/1890 | 0.0 | 0.0 | 0.0 | 0.0 | 11.0 | 0.0 | 3.1 | 3.3 | 9.3 | 0.0 | 0.0 | 0.0 | 26.7 |
| 1890/1891 | 0.0 | 0.0 | 0.0 | 0.5 | 1.0 | 9.8 | 2.0 | 3.8 | 10.8 | 3.3 | 0.0 | 0.0 | 31.2 |
| 1891/1892 | 0.0 | 0.0 | 0.0 | 0.0 | 5.0 | 5.0 | 10.0 | 12.9 | 5.0 | 1.0 | 0.0 | 0.0 | 38.9 |
| 1892/1893 | 0.0 | 0.0 | 0.0 | 0.0 | 2.0 | 2.0 | 18.8 | 17.5 | 6.1 | 0.0 | 0.0 | 0.0 | 46.4 |
| 1893/1894 | 0.0 | 0.0 | 0.0 | 0.0 | 3.1 | 13.1 | 7.3 | 10.3 | 1.2 | 0.0 | 0.0 | 0.0 | 35.0 |
| 1894/1895 | 0.0 | 0.0 | 0.0 | 0.0 | 4.1 | 0.3 | 16.3 | 6.0 | 4.0 | 0.2 | 0.0 | 0.0 | 30.9 |
| 1895/1896 | 0.0 | 0.0 | 0.0 | 0.2 | 9.5 | 11.4 | 3.4 | 13.1 | 5.7 | 0.5 | 0.0 | 0.0 | 43.8 |
| 1896/1897 | 0.0 | 0.0 | 0.0 | 0.0 | 4.0 | 11.0 | 11.5 | 10.5 | 10.5 | 1.0 | 0.0 | 0.0 | 48.5 |
| 1897/1898 | 0.0 | 0.0 | 0.0 | 0.0 | 1.0 | 5.0 | 12.3 | 15.8 | 0.0 | 1.5 | 0.0 | 0.0 | 35.6 |
| 1898/1899 | 0.0 | 0.0 | 0.0 | 0.0 | 13.6 | 5.8 | 4.1 | 2.8 | 25.8 | 0.0 | 0.0 | 0.0 | 52.1 |
| 1899/1900 | 0.0 | 0.0 | 0.0 | 0.0 | 3.0 | 3.6 | 3.6 | 25.4 | 12.9 | 0.9 | 0.0 | 0.0 | 49.4 |
| 1900/1901 | 0.0 | 0.0 | 0.0 | 0.0 | 11.7 | 2.6 | 12.2 | 18.3 | 5.7 | 0.5 | 0.0 | 0.0 | 51.0 |
| 1901/1902 | 0.0 | 0.0 | 0.0 | 0.0 | 1.3 | 5.8 | 4.3 | 4.2 | 3.5 | 2.0 | 2.0 | 0.0 | 23.1 |
| 1902/1903 | 0.0 | 0.0 | 0.0 | 0.0 | 5.0 | 10.1 | 12.1 | 12.8 | 0.0 | 5.0 | 0.0 | 0.0 | 45.0 |
| 1903/1904 | 0.0 | 0.0 | 0.0 | 0.0 | 2.1 | 17.5 | 30.4 | 15.0 | 14.6 | 6.5 | 0.0 | 0.0 | 86.1 |
| 1904/1905 | 0.0 | 0.0 | 0.0 | 0.0 | 0.4 | 9.7 | 10.7 | 12.5 | 0.0 | 2.2 | 0.0 | 0.0 | 35.5 |
| 1905/1906 | 0.0 | 0.0 | 0.0 | 0.0 | 0.5 | 3.5 | 2.4 | 2.5 | 9.1 | 0.0 | 0.0 | 0.0 | 18.0 |
| 1906/1907 | 0.0 | 0.0 | 0.0 | 2.0 | 3.2 | 4.1 | 14.5 | 2.9 | 3.0 | 0.2 | 0.3 | 0.0 | 30.2 |
| 1907/1908 | 0.0 | 0.0 | 0.0 | 0.3 | 0.3 | 25.6 | 18.8 | 19.8 | 6.0 | 0.0 | 0.5 | 0.0 | 71.3 |
| 1908/1909 | 0.0 | 0.0 | 0.0 | 0.0 | 1.3 | 11.6 | 13.6 | 10.3 | 2.7 | 4.0 | 0.8 | 0.0 | 44.3 |
| 1909/1910 | 0.0 | 0.0 | 0.0 | 0.5 | 0.5 | 19.1 | 23.4 | 9.5 | 0.3 | 0.0 | 0.0 | 0.0 | 53.3 |
| 1910/1911 | 0.0 | 0.0 | 0.0 | 0.6 | 6.0 | 19.8 | 6.3 | 7.8 | 4.3 | 0.5 | 0.0 | 0.0 | 45.3 |
| 1911/1912 | 0.0 | 0.0 | 0.0 | 0.3 | 8.3 | 10.2 | 10.2 | 24.5 | 20.7 | 0.0 | 0.0 | 0.0 | 74.2 |
| 1912/1913 | 0.0 | 0.0 | 0.0 | 0.0 | 6.2 | 2.1 | 18.6 | 10.5 | 14.1 | 0.0 | 0.0 | 0.0 | 51.5 |
| 1913/1914 | 0.0 | 0.0 | 0.0 | 7.2 | 6.2 | 4.8 | 25.2 | 9.2 | 2.4 | 4.1 | 0.0 | 0.0 | 59.1 |
| 1914/1915 | 0.0 | 0.0 | 0.0 | 0.0 | 3.6 | 14.4 | 6.5 | 3.4 | 8.0 | 0.0 | 0.4 | 0.0 | 36.3 |
| 1915/1916 | 0.0 | 0.0 | 0.0 | 0.0 | 7.6 | 11.0 | 3.6 | 9.1 | 19.3 | 0.2 | 0.0 | 0.0 | 50.8 |
| 1916/1917 | 0.0 | 0.0 | 0.0 | 0.3 | 0.4 | 11.6 | 13.5 | 5.5 | 3.6 | 1.3 | 0.0 | 0.0 | 36.2 |
| 1917/1918 | 0.0 | 0.0 | 0.0 | 3.5 | 2.7 | 8.3 | 22.7 | 6.3 | 3.6 | 0.2 | 0.0 | 0.0 | 47.3 |
| 1918/1919 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 10.0 | 1.3 | 2.1 | 22.2 | 3.2 | 0.0 | 0.0 | 38.9 |
| 1919/1920 | 0.0 | 0.0 | 0.0 | 0.0 | 3.1 | 10.2 | 17.9 | 11.2 | 3.7 | 11.5 | 0.0 | 0.0 | 57.6 |
| 1920/1921 | 0.0 | 0.0 | 0.0 | 0.0 | 4.0 | 9.9 | 1.7 | 10.9 | 2.1 | 4.2 | 0.0 | 0.0 | 32.8 |
| 1921/1922 | 0.0 | 0.0 | 0.0 | 0.0 | 21.8 | 8.3 | 5.9 | 4.6 | 11.3 | 0.0 | 0.0 | 0.0 | 51.9 |
| 1922/1923 | 0.0 | 0.0 | 0.0 | 0.0 | 3.5 | 4.3 | 16.3 | 10.9 | 12.7 | 3.1 | 11.5 | 0.0 | 62.3 |
| 1923/1924 | 0.0 | 0.0 | 0.0 | 1.4 | 0.0 | 8.2 | 9.8 | 15.6 | 9.8 | 4.0 | 0.0 | 0.0 | 48.8 |
| 1924/1925 | 0.0 | 0.0 | 0.0 | 0.0 | 3.1 | 5.3 | 10.2 | 7.5 | 12.6 | 0.0 | 0.0 | 0.0 | 38.7 |
| 1925/1926 | 0.0 | 0.0 | 0.0 | 2.7 | 12.1 | 8.7 | 12.9 | 24.8 | 12.2 | 10.7 | 0.0 | 0.0 | 84.1 |
| 1926/1927 | 0.0 | 0.0 | 0.0 | 0.0 | 3.9 | 13.0 | 10.9 | 8.4 | 0.5 | 2.8 | 0.0 | 0.0 | 39.5 |
| 1927/1928 | 0.0 | 0.0 | 0.0 | 0.0 | 2.3 | 12.5 | 5.6 | 10.3 | 13.3 | 0.7 | 0.0 | 0.0 | 44.7 |
| 1928/1929 | 0.0 | 0.0 | 0.0 | 0.0 | 5.6 | 8.2 | 24.9 | 8.0 | 4.2 | 0.6 | 2.6 | 0.0 | 54.1 |
| 1929/1930 | 0.0 | 0.0 | 0.0 | 0.1 | 2.4 | 29.3 | 23.8 | 7.8 | 16.0 | 0.0 | 0.0 | 0.0 | 79.4 |
| 1930/1931 | 0.0 | 0.0 | 0.0 | 0.5 | 4.5 | 7.9 | 15.5 | 7.6 | 14.4 | 0.0 | 0.0 | 0.0 | 50.4 |
| 1931/1932 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 5.5 | 0.6 | 6.0 | 19.1 | 2.2 | 0.0 | 0.0 | 33.4 |
| 1932/1933 | 0.0 | 0.0 | 0.0 | 0.0 | 6.3 | 4.7 | 0.8 | 8.7 | 6.3 | 0.2 | 0.0 | 0.0 | 27.0 |
| 1933/1934 | 0.0 | 0.0 | 0.0 | 0.0 | 9.9 | 10.4 | 3.0 | 4.6 | 12.6 | 4.6 | 0.0 | 0.0 | 45.1 |
| 1934/1935 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 16.8 | 1.8 | 17.1 | 8.7 | 0.8 | 0.1 | 0.0 | 45.3 |
| 1935/1936 | 0.0 | 0.0 | 0.0 | 0.0 | 1.7 | 11.5 | 17.2 | 16.9 | 5.0 | 7.8 | 0.0 | 0.0 | 60.1 |
| 1936/1937 | 0.0 | 0.0 | 0.0 | 0.5 | 0.7 | 5.5 | 3.7 | 5.0 | 7.5 | 8.0 | 0.0 | 0.0 | 30.9 |
| 1937/1938 | 0.0 | 0.0 | 0.0 | 0.0 | 6.8 | 8.0 | 9.9 | 10.5 | 3.3 | 9.3 | 0.0 | 0.0 | 47.8 |
| 1938/1939 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 11.7 | 18.7 | 8.7 | 4.9 | 8.1 | 0.0 | 0.0 | 52.1 |
| 1939/1940 | 0.0 | 0.0 | 0.0 | 0.0 | 0.5 | 2.9 | 10.6 | 9.0 | 15.4 | 1.2 | 0.0 | 0.0 | 39.6 |
| 1940/1941 | 0.0 | 0.0 | 0.0 | 0.0 | 13.2 | 9.6 | 6.2 | 9.3 | 6.4 | 0.0 | 0.0 | 0.0 | 44.7 |
| 1941/1942 | 0.0 | 0.0 | 0.0 | 0.0 | 1.7 | 4.0 | 13.9 | 10.1 | 10.7 | 3.4 | 0.0 | 0.0 | 43.8 |
| 1942/1943 | 0.0 | 0.0 | 0.0 | 0.0 | 6.0 | 13.0 | 33.6 | 8.1 | 7.0 | 5.2 | 0.0 | 0.0 | 72.9 |
| 1943/1944 | 0.0 | 0.0 | 0.0 | 1.7 | 3.1 | 1.9 | 2.3 | 15.4 | 9.6 | 1.4 | 0.0 | 0.0 | 35.4 |
| 1944/1945 | 0.0 | 0.0 | 0.0 | 0.0 | 2.4 | 17.1 | 12.5 | 8.7 | 0.0 | 0.9 | 0.2 | 0.0 | 41.8 |
| 1945/1946 | 0.0 | 0.0 | 0.0 | 0.0 | 0.6 | 8.7 | 8.0 | 18.2 | 3.8 | 0.0 | 0.0 | 0.0 | 39.3 |
| 1946/1947 | 0.0 | 0.0 | 0.0 | 0.0 | 0.4 | 11.2 | 14.4 | 10.5 | 12.9 | 4.2 | 0.0 | 0.0 | 53.6 |
| 1947/1948 | 0.0 | 0.0 | 0.0 | 0.0 | 10.0 | 15.3 | 9.5 | 4.1 | 10.8 | 0.3 | 0.0 | 0.0 | 50.0 |
| 1948/1949 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 5.7 | 6.4 | 4.9 | 3.9 | 0.3 | 0.0 | 0.0 | 21.2 |
| 1949/1950 | 0.0 | 0.0 | 0.0 | 0.0 | 12.1 | 3.8 | 4.0 | 13.7 | 9.2 | 2.9 | 0.0 | 0.0 | 45.7 |
| 1950/1951 | 0.0 | 0.0 | 0.0 | 0.0 | 13.6 | 8.6 | 11.4 | 5.1 | 4.3 | 1.0 | 0.0 | 0.0 | 44.0 |
| 1951/1952 | 0.0 | 0.0 | 0.0 | 0.0 | 16.8 | 27.8 | 12.4 | 10.5 | 9.8 | 11.5 | 0.0 | 0.0 | 88.8 |
| 1952/1953 | 0.0 | 0.0 | 0.0 | 0.1 | 0.8 | 5.8 | 7.9 | 2.4 | 2.5 | 1.2 | 0.0 | 0.0 | 20.7 |
| 1953/1954 | 0.0 | 0.0 | 0.0 | 0.0 | 2.3 | 7.5 | 12.1 | 13.3 | 13.8 | 0.1 | 0.3 | 0.0 | 49.4 |
| 1954/1955 | 0.0 | 0.0 | 0.0 | 0.0 | 2.1 | 10.9 | 5.2 | 12.4 | 8.5 | 0.0 | 0.0 | 0.0 | 39.1 |
| 1955/1956 | 0.0 | 0.0 | 0.0 | 0.0 | 9.4 | 3.5 | 6.9 | 17.6 | 11.4 | 2.4 | 0.0 | 0.0 | 51.2 |
| 1956/1957 | 0.0 | 0.0 | 0.0 | 0.0 | 3.8 | 3.9 | 8.2 | 5.5 | 4.7 | 0.3 | 0.0 | 0.0 | 26.4 |
| 1957/1958 | 0.0 | 0.0 | 0.0 | 1.4 | 3.4 | 7.2 | 12.2 | 5.9 | 2.9 | 0.3 | 0.0 | 0.0 | 33.3 |
| 1958/1959 | 0.0 | 0.0 | 0.0 | 0.0 | 4.6 | 6.4 | 19.5 | 7.8 | 6.6 | 0.3 | 0.0 | 0.0 | 45.2 |
| 1959/1960 | 0.0 | 0.0 | 0.0 | 0.0 | 6.6 | 6.4 | 10.3 | 15.6 | 7.5 | 0.8 | 0.0 | 0.0 | 47.2 |
| 1960/1961 | 0.0 | 0.0 | 0.0 | 0.0 | 1.7 | 4.1 | 5.6 | 9.9 | 2.9 | 6.6 | 0.0 | 0.0 | 30.8 |
| 1961/1962 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 6.1 | 19.2 | 16.9 | 4.1 | 3.5 | 0.0 | 0.0 | 49.8 |
| 1962/1963 | 0.0 | 0.0 | 0.0 | 1.0 | 0.6 | 14.9 | 12.2 | 5.0 | 6.0 | 1.6 | 0.0 | 0.0 | 41.3 |
| 1963/1964 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 8.7 | 6.4 | 5.4 | 12.8 | 2.1 | 0.0 | 0.0 | 35.4 |
| 1964/1965 | 0.0 | 0.0 | 0.0 | 0.0 | 4.2 | 12.3 | 6.3 | 15.2 | 18.6 | 6.6 | 0.0 | 0.0 | 63.2 |
| 1965/1966 | 0.0 | 0.0 | 0.0 | 0.0 | 1.5 | 8.5 | 10.7 | 9.5 | 1.1 | 2.0 | 0.0 | 0.0 | 33.3 |
| 1966/1967 | 0.0 | 0.0 | 0.0 | 0.0 | 16.8 | 10.0 | 30.1 | 15.1 | 9.4 | 0.0 | 0.0 | 0.0 | 81.4 |
| 1967/1968 | 0.0 | 0.0 | 0.0 | 7.5 | 5.8 | 2.4 | 10.8 | 2.9 | 13.4 | 0.2 | 0.0 | 0.0 | 43.0 |
| 1968/1969 | 0.0 | 0.0 | 0.0 | 0.0 | 1.8 | 8.6 | 13.2 | 3.1 | 4.9 | 0.0 | 0.0 | 0.0 | 31.6 |
| 1969/1970 | 0.0 | 0.0 | 0.0 | 0.0 | 8.5 | 6.1 | 14.3 | 8.5 | 13.3 | 17.0 | 0.0 | 0.0 | 67.7 |
| 1970/1971 | 0.0 | 0.0 | 0.0 | 0.0 | 0.9 | 26.1 | 8.9 | 5.7 | 19.8 | 1.2 | 0.0 | 0.0 | 62.6 |
| 1971/1972 | 0.0 | 0.0 | 0.0 | 0.0 | 13.0 | 3.7 | 16.9 | 14.6 | 9.3 | 5.8 | 0.0 | 0.0 | 63.3 |
| 1972/1973 | 0.0 | 0.0 | 0.0 | 0.0 | 11.8 | 18.3 | 1.9 | 21.3 | 16.5 | 5.5 | 0.0 | 0.0 | 75.3 |
| 1973/1974 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 23.6 | 14.9 | 16.5 | 10.4 | 0.5 | 0.0 | 0.0 | 65.9 |
| 1974/1975 | 0.0 | 0.0 | 0.0 | 0.5 | 6.9 | 20.4 | 4.4 | 12.7 | 10.4 | 13.2 | 0.0 | 0.0 | 68.5 |
| 1975/1976 | 0.0 | 0.0 | 0.0 | 0.0 | 10.0 | 20.2 | 23.5 | 4.6 | 6.8 | 5.5 | 0.0 | 0.0 | 70.6 |
| 1976/1977 | 0.0 | 0.0 | 0.0 | 1.4 | 4.6 | 20.5 | 17.2 | 3.5 | 8.7 | 1.1 | 0.0 | 0.0 | 57.0 |
| 1977/1978 | 0.0 | 0.0 | 0.0 | 0.0 | 8.1 | 13.3 | 34.0 | 6.7 | 4.6 | 0.0 | 0.0 | 0.0 | 66.7 |
| 1978/1979 | 0.0 | 0.0 | 0.0 | 0.0 | 7.0 | 14.7 | 27.1 | 4.1 | 4.2 | 1.5 | 0.0 | 0.0 | 58.6 |
| 1979/1980 | 0.0 | 0.0 | 0.0 | 0.0 | 7.2 | 3.2 | 6.7 | 5.5 | 8.8 | 3.3 | 0.0 | 0.0 | 34.7 |
| 1980/1981 | 0.0 | 0.0 | 0.0 | 0.0 | 4.2 | 14.2 | 5.9 | 12.2 | 2.2 | 0.0 | 0.0 | 0.0 | 38.7 |
| 1981/1982 | 0.0 | 0.0 | 0.0 | 0.3 | 2.2 | 15.9 | 15.6 | 8.2 | 12.9 | 7.0 | 0.0 | 0.0 | 62.1 |
| 1982/1983 | 0.0 | 0.0 | 0.0 | 0.0 | 1.1 | 4.3 | 5.1 | 3.5 | 15.2 | 4.3 | 0.0 | 0.0 | 33.5 |
| 1983/1984 | 0.0 | 0.0 | 0.0 | 0.1 | 3.0 | 21.4 | 9.1 | 3.2 | 12.1 | 0.5 | 0.0 | 0.0 | 49.4 |
| 1984/1985 | 0.0 | 0.0 | 0.0 | 0.0 | 1.2 | 11.7 | 25.5 | 17.5 | 3.8 | 0.9 | 0.0 | 0.0 | 60.6 |
| 1985/1986 | 0.0 | 0.0 | 0.0 | 0.0 | 3.7 | 16.4 | 12.5 | 23.7 | 4.9 | 0.0 | 0.0 | 0.0 | 61.2 |
| 1986/1987 | 0.0 | 0.0 | 0.0 | 0.0 | 4.1 | 6.8 | 16.8 | 1.4 | 5.7 | 2.5 | 0.0 | 0.0 | 37.3 |
| 1987/1988 | 0.0 | 0.0 | 0.0 | 0.5 | 0.0 | 12.9 | 9.7 | 18.7 | 4.9 | 1.2 | 0.0 | 0.0 | 47.9 |
| 1988/1989 | 0.0 | 0.0 | 0.0 | 0.0 | 3.8 | 8.5 | 7.2 | 13.5 | 4.4 | 2.5 | 0.0 | 0.0 | 39.9 |
| 1989/1990 | 0.0 | 0.0 | 0.0 | 3.9 | 11.8 | 10.2 | 3.6 | 21.3 | 5.0 | 0.6 | 0.0 | 0.0 | 56.4 |
| 1990/1991 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 12.9 | 13.8 | 6.5 | 2.8 | 0.1 | 0.0 | 0.0 | 36.2 |
| 1991/1992 | 0.0 | 0.0 | 0.0 | 1.3 | 3.8 | 19.1 | 11.0 | 4.2 | 14.1 | 4.8 | 0.0 | 0.0 | 58.3 |
| 1992/1993 | 0.0 | 0.0 | 0.0 | 1.2 | 4.3 | 8.7 | 17.6 | 19.2 | 13.1 | 3.3 | 0.0 | 0.0 | 67.4 |
| 1993/1994 | 0.0 | 0.0 | 0.0 | 0.0 | 1.5 | 5.7 | 16.0 | 21.6 | 5.1 | 0.1 | 0.3 | 0.0 | 50.3 |
| 1994/1995 | 0.0 | 0.0 | 0.0 | 0.0 | 0.9 | 9.0 | 20.9 | 13.7 | 5.6 | 1.7 | 0.0 | 0.0 | 51.8 |
| 1995/1996 | 0.0 | 0.0 | 0.0 | 0.0 | 7.9 | 11.2 | 5.3 | 3.9 | 10.3 | 0.6 | 0.0 | - | 39.2 |
| 1996/1997 | - | - | - | - | - | - | - | - | - | - | - | - | 0.0 |
| 1997/1998 | - | - | - | - | - | - | - | - | - | - | - | - | 0.0 |
| 1998/1999 | - | - | - | - | - | 6.1 | 34.6 | 4.2 | 11.1 | 0.0 | 0.0 | 0.0 | 56.0 |
| 1999/2000 | 0.0 | - | - | - | - | 5.8 | 10.1 | 5.4 | 0.2 | 1.1 | - | - | 22.6 |
| 2000/2001 | - | - | - | - | 2.3 | 31.9 | 4.0 | 4.2 | 0.4 | 0.2 | - | - | 43.0 |
| 2001/2002 | - | - | - | 0.0 | - | 1.5 | 1.0 | 3.6 | 1.0 | 0.1 | - | - | 7.2 |
| 2002/2003 | - | - | - | - | 2.6 | 5.0 | 10.9 | 11.3 | 13.3 | - | 0.0 | 0.0 | 43.1 |
| 2003/2004 | 0.0 | 0.0 | 0.0 | 0.0 | 1.1 | 9.2 | 28.3 | 7.2 | 2.9 | 0.5 | 0.0 | 0.0 | 49.2 |
| 2004/2005 | 0.0 | 0.0 | 0.0 | 0.0 | 5.5 | 13.9 | 26.8 | 11.1 | 12.1 | 4.3 | 0.0 | 0.0 | 73.7 |
| 2005/2006 | 0.0 | 0.0 | 0.0 | 0.0 | 7.5 | 20.8 | 8.0 | 10.1 | 2.3 | 0.2 | 0.0 | 0.0 | 48.9 |
| 2006/2007 | 0.0 | 0.0 | 0.0 | 1.5 | 1.6 | 3.2 | 8.8 | 7.6 | 2.8 | 6.0 | 0.0 | 0.0 | 31.5 |
| 2007/2008 | 0.0 | 0.0 | 0.0 | 0.0 | 3.0 | 16.7 | 15.2 | 27.6 | 7.0 | 0.0 | 0.0 | 0.0 | 69.5 |
| 2008/2009 | 0.0 | 0.0 | 0.0 | 0.0 | 7.5 | 29.0 | 18.7 | 9.5 | 0.1 | 5.0 | 0.0 | 0.0 | 69.8 |
| 2009/2010 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 11.4 | 9.4 | 20.6 | 1.2 | - | - | - | 42.6 |
This page will be updated approximately once per year with the latest data. If you need more recent data than what is available on this page, data for the current and previous year is available at our NOWData page.