| Year | Count |
|---|---|
| 1910 | 21 |
| 1912 | 15 |
| 1913 | 25 |
| 1914 | 61 |
| 1915 | 68 |
| 1916 | 98 |
| 1917 | 55 |
| 1918 | 70 |
| 1919 | 96 |
| 1920 | 85 |
| 1921 | 111 |
| 1922 | 59 |
| 1923 | 122 |
| 1924 | 112 |
| 1925 | 127 |
| 1926 | 84 |
| 1927 | 140 |
| 1928 | 100 |
| 1929 | 38 |
| 1930 | 17 |
| 1931 | 50 |
| 1932 | 70 |
| 1933 | 18 |
| 1934 | 6 |
| 1935 | 15 |
| 1936 | 41 |
| 1937 | 5 |
| 1938 | 40 |
| 1939 | 39 |
| 1940 | 5 |
| 1942 | 11 |
| 1943 | 10 |
| 1944 | 5 |
| 1948 | 6 |
| 1949 | 5 |
| 1957 | 10 |