| Year | Count |
|---|---|
| 1910 | 91 |
| 1911 | 47 |
| 1912 | 84 |
| 1913 | 60 |
| 1914 | 100 |
| 1915 | 91 |
| 1916 | 166 |
| 1917 | 147 |
| 1918 | 154 |
| 1919 | 168 |
| 1920 | 199 |
| 1921 | 163 |
| 1922 | 162 |
| 1923 | 166 |
| 1924 | 151 |
| 1925 | 170 |
| 1926 | 149 |
| 1927 | 127 |
| 1928 | 90 |
| 1929 | 146 |
| 1930 | 189 |
| 1931 | 67 |
| 1932 | 46 |
| 1933 | 57 |
| 1934 | 83 |
| 1935 | 84 |
| 1936 | 45 |
| 1937 | 32 |
| 1938 | 40 |
| 1939 | 53 |
| 1940 | 25 |
| 1941 | 15 |
| 1942 | 36 |
| 1943 | 41 |
| 1944 | 35 |
| 1945 | 13 |
| 1946 | 53 |
| 1947 | 40 |
| 1948 | 40 |
| 1949 | 24 |
| 1950 | 18 |
| 1952 | 26 |
| 1953 | 20 |
| 1954 | 8 |
| 1955 | 10 |
| 1956 | 17 |
| 1964 | 5 |