| Year | Count |
|---|---|
| 1910 | 5 |
| 1912 | 28 |
| 1913 | 105 |
| 1914 | 102 |
| 1915 | 164 |
| 1916 | 143 |
| 1917 | 142 |
| 1918 | 139 |
| 1919 | 95 |
| 1920 | 143 |
| 1921 | 126 |
| 1922 | 123 |
| 1923 | 106 |
| 1924 | 107 |
| 1925 | 79 |
| 1926 | 113 |
| 1927 | 51 |
| 1928 | 61 |
| 1929 | 111 |
| 1930 | 90 |
| 1931 | 51 |
| 1932 | 78 |
| 1933 | 45 |
| 1934 | 22 |
| 1935 | 7 |
| 1936 | 21 |
| 1938 | 6 |
| 1939 | 19 |
| 1940 | 5 |
| 1941 | 5 |
| 1942 | 26 |
| 1943 | 11 |
| 1944 | 6 |
| 1946 | 5 |
| 1947 | 12 |
| 1950 | 15 |
| 1951 | 5 |
| 1956 | 14 |
| 1959 | 18 |
| 1961 | 5 |
| 1963 | 5 |
| 1966 | 12 |
| 1968 | 5 |
| 1969 | 5 |
| 1976 | 5 |
| 1983 | 5 |
| 1985 | 6 |
| 1986 | 5 |
| 1988 | 8 |
| 1989 | 6 |
| 1992 | 5 |