| Year | Count |
|---|---|
| 1910 | 62 |
| 1911 | 61 |
| 1912 | 77 |
| 1913 | 82 |
| 1914 | 111 |
| 1915 | 139 |
| 1916 | 135 |
| 1917 | 138 |
| 1918 | 118 |
| 1919 | 118 |
| 1920 | 92 |
| 1921 | 72 |
| 1922 | 142 |
| 1923 | 146 |
| 1924 | 152 |
| 1925 | 90 |
| 1926 | 102 |
| 1927 | 86 |
| 1928 | 68 |
| 1929 | 48 |
| 1930 | 50 |
| 1931 | 21 |
| 1932 | 16 |
| 1933 | 17 |
| 1934 | 15 |
| 1935 | 18 |
| 1936 | 9 |
| 1937 | 8 |
| 1938 | 8 |
| 1939 | 10 |
| 1940 | 10 |
| 1941 | 9 |
| 1942 | 10 |
| 1943 | 9 |
| 1944 | 11 |
| 1945 | 10 |
| 1946 | 11 |
| 1947 | 5 |
| 1948 | 10 |
| 1949 | 5 |
| 1953 | 7 |
| 1954 | 11 |
| 1955 | 5 |
| 1957 | 12 |
| 1958 | 12 |
| 1963 | 8 |
| 1964 | 5 |