| Year | Count |
|---|---|
| 1910 | 31 |
| 1911 | 30 |
| 1912 | 66 |
| 1913 | 68 |
| 1914 | 83 |
| 1915 | 182 |
| 1916 | 195 |
| 1917 | 194 |
| 1918 | 214 |
| 1919 | 191 |
| 1920 | 204 |
| 1921 | 212 |
| 1922 | 197 |
| 1923 | 195 |
| 1924 | 191 |
| 1925 | 188 |
| 1926 | 178 |
| 1927 | 123 |
| 1928 | 131 |
| 1929 | 115 |
| 1930 | 109 |
| 1931 | 63 |
| 1932 | 74 |
| 1933 | 41 |
| 1934 | 19 |
| 1935 | 26 |
| 1936 | 5 |
| 1937 | 27 |
| 1938 | 5 |
| 1939 | 28 |
| 1940 | 10 |
| 1941 | 10 |
| 1942 | 17 |
| 1945 | 7 |
| 1947 | 5 |
| 1949 | 5 |
| 1951 | 7 |
| 1954 | 5 |