| Year | Count |
|---|---|
| 1910 | 78 |
| 1911 | 54 |
| 1912 | 64 |
| 1913 | 55 |
| 1914 | 66 |
| 1915 | 78 |
| 1916 | 91 |
| 1917 | 84 |
| 1918 | 102 |
| 1919 | 69 |
| 1920 | 110 |
| 1921 | 76 |
| 1922 | 47 |
| 1923 | 42 |
| 1924 | 48 |
| 1925 | 62 |
| 1926 | 74 |
| 1927 | 66 |
| 1928 | 57 |
| 1929 | 70 |
| 1930 | 70 |
| 1931 | 54 |
| 1932 | 62 |
| 1933 | 69 |
| 1934 | 47 |
| 1935 | 50 |
| 1936 | 35 |
| 1937 | 30 |
| 1938 | 22 |
| 1939 | 26 |
| 1940 | 46 |
| 1941 | 25 |
| 1942 | 22 |
| 1943 | 21 |
| 1944 | 23 |
| 1945 | 26 |
| 1946 | 23 |
| 1947 | 12 |
| 1948 | 5 |
| 1949 | 20 |
| 1950 | 13 |
| 1951 | 19 |
| 1952 | 10 |
| 1953 | 25 |
| 1954 | 24 |
| 1955 | 25 |
| 1956 | 6 |
| 1959 | 5 |
| 1960 | 12 |
| 1961 | 10 |
| 1962 | 13 |