| Year | Count |
|---|---|
| 1910 | 47 |
| 1911 | 42 |
| 1912 | 69 |
| 1913 | 105 |
| 1914 | 153 |
| 1915 | 210 |
| 1916 | 207 |
| 1917 | 249 |
| 1918 | 230 |
| 1919 | 204 |
| 1920 | 189 |
| 1921 | 133 |
| 1922 | 147 |
| 1923 | 162 |
| 1924 | 146 |
| 1925 | 180 |
| 1926 | 102 |
| 1927 | 132 |
| 1928 | 102 |
| 1929 | 89 |
| 1930 | 77 |
| 1931 | 68 |
| 1932 | 32 |
| 1933 | 34 |
| 1934 | 24 |
| 1935 | 19 |
| 1936 | 18 |
| 1937 | 8 |
| 1938 | 6 |
| 1939 | 7 |
| 1940 | 11 |
| 1941 | 7 |
| 1943 | 6 |
| 1944 | 5 |
| 1954 | 5 |