| Year | Count |
|---|---|
| 1910 | 8 |
| 1911 | 11 |
| 1912 | 20 |
| 1913 | 25 |
| 1914 | 14 |
| 1915 | 28 |
| 1916 | 40 |
| 1917 | 32 |
| 1918 | 21 |
| 1919 | 31 |
| 1920 | 40 |
| 1921 | 40 |
| 1922 | 43 |
| 1923 | 60 |
| 1924 | 47 |
| 1925 | 47 |
| 1926 | 32 |
| 1927 | 55 |
| 1928 | 24 |
| 1929 | 20 |
| 1930 | 28 |
| 1931 | 17 |
| 1932 | 9 |
| 1933 | 9 |
| 1934 | 10 |
| 1935 | 8 |
| 1937 | 12 |
| 1938 | 6 |
| 1939 | 5 |
| 1940 | 5 |
| 1942 | 5 |
| 1943 | 13 |
| 1944 | 11 |
| 1948 | 7 |
| 1951 | 6 |
| 1963 | 5 |
| 1966 | 8 |
| 1967 | 7 |
| 1968 | 5 |
| 1969 | 5 |
| 1970 | 8 |
| 1971 | 5 |
| 1972 | 5 |
| 1975 | 5 |
| 1978 | 14 |
| 1982 | 5 |