| Year | Count |
|---|---|
| 1910 | 29 |
| 1911 | 21 |
| 1912 | 24 |
| 1913 | 46 |
| 1914 | 44 |
| 1915 | 67 |
| 1916 | 43 |
| 1917 | 42 |
| 1918 | 51 |
| 1919 | 43 |
| 1920 | 44 |
| 1921 | 56 |
| 1922 | 54 |
| 1923 | 50 |
| 1924 | 36 |
| 1925 | 62 |
| 1926 | 46 |
| 1927 | 76 |
| 1928 | 42 |
| 1929 | 46 |
| 1930 | 20 |
| 1931 | 31 |
| 1932 | 25 |
| 1933 | 34 |
| 1934 | 38 |
| 1935 | 30 |
| 1936 | 40 |
| 1937 | 32 |
| 1938 | 29 |
| 1939 | 15 |
| 1940 | 19 |
| 1941 | 17 |
| 1942 | 34 |
| 1943 | 6 |
| 1944 | 13 |
| 1945 | 5 |
| 1946 | 5 |
| 1947 | 6 |
| 1948 | 28 |
| 1949 | 21 |
| 1950 | 25 |
| 1951 | 6 |
| 1953 | 5 |
| 1954 | 6 |
| 1959 | 5 |
| 1960 | 6 |