| Year | Count |
|---|---|
| 1910 | 27 |
| 1911 | 18 |
| 1912 | 35 |
| 1913 | 42 |
| 1914 | 48 |
| 1915 | 67 |
| 1916 | 70 |
| 1917 | 108 |
| 1918 | 93 |
| 1919 | 120 |
| 1920 | 93 |
| 1921 | 103 |
| 1922 | 94 |
| 1923 | 100 |
| 1924 | 88 |
| 1925 | 101 |
| 1926 | 101 |
| 1927 | 125 |
| 1928 | 75 |
| 1929 | 124 |
| 1930 | 97 |
| 1931 | 19 |
| 1932 | 58 |
| 1933 | 52 |
| 1934 | 69 |
| 1935 | 44 |
| 1936 | 53 |
| 1937 | 33 |
| 1938 | 28 |
| 1939 | 25 |
| 1940 | 29 |
| 1941 | 34 |
| 1942 | 45 |
| 1943 | 47 |
| 1944 | 54 |
| 1945 | 42 |
| 1946 | 42 |
| 1947 | 72 |
| 1948 | 33 |
| 1949 | 46 |
| 1950 | 23 |
| 1951 | 36 |
| 1952 | 10 |
| 1952 | 39 |
| 1953 | 12 |
| 1954 | 46 |
| 1955 | 15 |
| 1956 | 10 |
| 1957 | 13 |
| 1958 | 17 |
| 1960 | 14 |
| 1961 | 5 |
| 1963 | 7 |
| 1965 | 10 |
| 1970 | 10 |