| Year | Count |
|---|---|
| 1910 | 60 |
| 1911 | 59 |
| 1912 | 98 |
| 1913 | 107 |
| 1914 | 101 |
| 1915 | 247 |
| 1916 | 238 |
| 1917 | 229 |
| 1918 | 220 |
| 1919 | 153 |
| 1920 | 212 |
| 1921 | 146 |
| 1922 | 144 |
| 1923 | 102 |
| 1924 | 152 |
| 1925 | 98 |
| 1926 | 104 |
| 1927 | 122 |
| 1928 | 75 |
| 1929 | 57 |
| 1930 | 30 |
| 1931 | 37 |
| 1932 | 35 |
| 1933 | 46 |
| 1934 | 25 |
| 1935 | 20 |
| 1936 | 24 |
| 1938 | 5 |
| 1939 | 8 |
| 1941 | 11 |
| 1943 | 16 |
| 1946 | 6 |
| 1947 | 7 |
| 1984 | 5 |
| 2012 | 5 |