| Year | Count |
|---|---|
| 1910 | 94 |
| 1911 | 86 |
| 1912 | 136 |
| 1913 | 118 |
| 1914 | 154 |
| 1915 | 197 |
| 1916 | 178 |
| 1917 | 241 |
| 1918 | 253 |
| 1918 | 5 |
| 1919 | 174 |
| 1920 | 150 |
| 1921 | 167 |
| 1922 | 151 |
| 1923 | 100 |
| 1924 | 155 |
| 1925 | 144 |
| 1926 | 74 |
| 1927 | 206 |
| 1928 | 221 |
| 1929 | 164 |
| 1930 | 117 |
| 1931 | 123 |
| 1932 | 81 |
| 1933 | 71 |
| 1934 | 65 |
| 1935 | 108 |
| 1936 | 30 |
| 1937 | 32 |
| 1938 | 34 |
| 1939 | 54 |
| 1940 | 27 |
| 1941 | 18 |
| 1942 | 30 |
| 1943 | 12 |
| 1944 | 12 |
| 1945 | 11 |
| 1946 | 6 |
| 1947 | 8 |
| 1948 | 5 |
| 1950 | 5 |