| Year | Count |
|---|---|
| 1910 | 13 |
| 1911 | 11 |
| 1912 | 29 |
| 1913 | 21 |
| 1914 | 37 |
| 1915 | 37 |
| 1916 | 47 |
| 1917 | 57 |
| 1918 | 83 |
| 1919 | 55 |
| 1920 | 40 |
| 1921 | 16 |
| 1922 | 32 |
| 1923 | 51 |
| 1924 | 55 |
| 1925 | 48 |
| 1926 | 44 |
| 1927 | 26 |
| 1928 | 25 |
| 1929 | 43 |
| 1930 | 24 |
| 1931 | 18 |
| 1932 | 22 |
| 1933 | 52 |
| 1934 | 38 |
| 1935 | 15 |
| 1936 | 35 |
| 1937 | 6 |
| 1938 | 10 |
| 1939 | 16 |
| 1940 | 9 |
| 1941 | 10 |
| 1945 | 5 |
| 1948 | 10 |
| 1955 | 5 |
| 1958 | 5 |