| Year | Count |
|---|---|
| 1913 | 5 |
| 1914 | 16 |
| 1915 | 12 |
| 1916 | 14 |
| 1917 | 31 |
| 1918 | 24 |
| 1919 | 30 |
| 1920 | 28 |
| 1921 | 22 |
| 1922 | 32 |
| 1923 | 38 |
| 1924 | 12 |
| 1925 | 51 |
| 1926 | 51 |
| 1927 | 30 |
| 1928 | 44 |
| 1929 | 55 |
| 1930 | 33 |
| 1931 | 42 |
| 1932 | 18 |
| 1933 | 30 |
| 1934 | 24 |
| 1935 | 6 |
| 1936 | 39 |
| 1937 | 16 |
| 1938 | 18 |
| 1939 | 24 |
| 1940 | 27 |
| 1941 | 30 |
| 1942 | 21 |
| 1943 | 27 |
| 1944 | 18 |
| 1945 | 27 |
| 1946 | 18 |
| 1947 | 24 |
| 1948 | 27 |
| 1949 | 15 |
| 1950 | 27 |
| 1952 | 20 |
| 1953 | 18 |
| 1954 | 5 |