| Year | Count |
|---|---|
| 1911 | 11 |
| 1912 | 27 |
| 1913 | 31 |
| 1914 | 25 |
| 1915 | 62 |
| 1916 | 75 |
| 1917 | 99 |
| 1918 | 109 |
| 1919 | 74 |
| 1920 | 103 |
| 1921 | 112 |
| 1922 | 84 |
| 1923 | 118 |
| 1924 | 106 |
| 1925 | 99 |
| 1926 | 101 |
| 1927 | 79 |
| 1928 | 71 |
| 1929 | 51 |
| 1930 | 71 |
| 1931 | 37 |
| 1932 | 63 |
| 1933 | 45 |
| 1934 | 31 |
| 1935 | 60 |
| 1936 | 27 |
| 1937 | 38 |
| 1938 | 28 |
| 1939 | 5 |
| 1940 | 10 |
| 1941 | 24 |
| 1942 | 21 |
| 1943 | 6 |
| 1944 | 12 |
| 1946 | 6 |
| 1947 | 19 |
| 1949 | 11 |
| 1950 | 5 |
| 1951 | 10 |
| 1956 | 5 |
| 1961 | 5 |