| Year | Count |
|---|---|
| 1910 | 112 |
| 1911 | 132 |
| 1912 | 169 |
| 1913 | 247 |
| 1914 | 268 |
| 1915 | 361 |
| 1916 | 444 |
| 1917 | 382 |
| 1918 | 358 |
| 1919 | 283 |
| 1920 | 287 |
| 1921 | 227 |
| 1922 | 216 |
| 1923 | 259 |
| 1924 | 222 |
| 1925 | 216 |
| 1926 | 202 |
| 1927 | 248 |
| 1928 | 164 |
| 1929 | 191 |
| 1930 | 153 |
| 1931 | 128 |
| 1932 | 106 |
| 1933 | 65 |
| 1934 | 54 |
| 1935 | 62 |
| 1936 | 52 |
| 1937 | 52 |
| 1938 | 31 |
| 1939 | 37 |
| 1940 | 39 |
| 1941 | 23 |
| 1942 | 19 |
| 1943 | 7 |
| 1944 | 7 |
| 1945 | 12 |
| 1950 | 5 |
| 1951 | 5 |
| 1952 | 20 |
| 1953 | 5 |
| 1955 | 12 |
| 1956 | 5 |
| 1957 | 10 |
| 1958 | 10 |
| 1967 | 10 |