| Year | Count |
|---|---|
| 1910 | 27 |
| 1911 | 21 |
| 1912 | 90 |
| 1913 | 101 |
| 1914 | 131 |
| 1915 | 245 |
| 1916 | 209 |
| 1917 | 245 |
| 1918 | 252 |
| 1919 | 223 |
| 1920 | 302 |
| 1921 | 285 |
| 1922 | 257 |
| 1923 | 226 |
| 1924 | 197 |
| 1925 | 302 |
| 1926 | 303 |
| 1927 | 322 |
| 1928 | 275 |
| 1929 | 255 |
| 1930 | 249 |
| 1931 | 313 |
| 1932 | 192 |
| 1933 | 240 |
| 1934 | 185 |
| 1935 | 213 |
| 1936 | 131 |
| 1937 | 170 |
| 1938 | 135 |
| 1939 | 122 |
| 1940 | 42 |
| 1941 | 78 |
| 1942 | 67 |
| 1943 | 57 |
| 1944 | 60 |
| 1945 | 62 |
| 1946 | 41 |
| 1947 | 57 |
| 1948 | 99 |
| 1949 | 47 |
| 1950 | 53 |
| 1951 | 25 |
| 1952 | 41 |
| 1953 | 20 |
| 1954 | 15 |
| 1955 | 11 |
| 1956 | 20 |
| 1957 | 20 |
| 1959 | 5 |