| Year | Count |
|---|---|
| 1910 | 15 |
| 1911 | 23 |
| 1912 | 48 |
| 1913 | 77 |
| 1914 | 92 |
| 1915 | 134 |
| 1916 | 106 |
| 1917 | 122 |
| 1918 | 121 |
| 1919 | 107 |
| 1920 | 122 |
| 1921 | 91 |
| 1922 | 94 |
| 1923 | 85 |
| 1924 | 65 |
| 1925 | 76 |
| 1926 | 71 |
| 1927 | 77 |
| 1928 | 73 |
| 1929 | 54 |
| 1930 | 44 |
| 1931 | 57 |
| 1932 | 36 |
| 1933 | 13 |
| 1934 | 22 |
| 1935 | 42 |
| 1936 | 29 |
| 1937 | 13 |
| 1938 | 22 |
| 1939 | 23 |
| 1940 | 30 |
| 1941 | 10 |
| 1942 | 16 |
| 1943 | 11 |
| 1946 | 21 |
| 1947 | 28 |
| 1948 | 23 |
| 1949 | 18 |
| 1950 | 14 |
| 1951 | 6 |
| 1952 | 10 |
| 1953 | 12 |
| 1954 | 5 |
| 1955 | 23 |
| 1957 | 6 |
| 1958 | 13 |
| 1959 | 11 |
| 1960 | 6 |
| 1962 | 6 |
| 1965 | 7 |
| 1966 | 6 |
| 1967 | 5 |
| 2002 | 6 |