| Year | Count |
|---|---|
| 1911 | 5 |
| 1913 | 15 |
| 1915 | 49 |
| 1916 | 29 |
| 1917 | 92 |
| 1918 | 134 |
| 1919 | 94 |
| 1920 | 122 |
| 1921 | 153 |
| 1922 | 128 |
| 1923 | 81 |
| 1924 | 147 |
| 1925 | 97 |
| 1926 | 78 |
| 1927 | 90 |
| 1928 | 66 |
| 1929 | 29 |
| 1930 | 33 |
| 1931 | 43 |
| 1932 | 23 |
| 1933 | 28 |
| 1934 | 20 |
| 1935 | 13 |
| 1936 | 5 |
| 1937 | 20 |
| 1938 | 28 |
| 1939 | 6 |
| 1940 | 15 |
| 1941 | 11 |
| 1943 | 7 |
| 1946 | 6 |
| 1947 | 5 |
| 1948 | 18 |
| 1949 | 6 |
| 1951 | 5 |
| 1952 | 10 |
| 1958 | 6 |
| 1962 | 5 |