| Year | Count |
|---|---|
| 1913 | 10 |
| 1914 | 18 |
| 1915 | 16 |
| 1916 | 29 |
| 1917 | 14 |
| 1918 | 30 |
| 1919 | 43 |
| 1920 | 20 |
| 1921 | 16 |
| 1922 | 23 |
| 1923 | 18 |
| 1924 | 15 |
| 1925 | 30 |
| 1926 | 29 |
| 1927 | 33 |
| 1929 | 21 |
| 1931 | 18 |
| 1932 | 18 |
| 1933 | 15 |
| 1934 | 46 |
| 1935 | 36 |
| 1936 | 36 |
| 1938 | 10 |
| 1939 | 21 |
| 1940 | 27 |
| 1942 | 23 |
| 1943 | 35 |
| 1946 | 23 |
| 1947 | 33 |
| 1948 | 15 |
| 1949 | 7 |
| 1951 | 10 |
| 1954 | 15 |
| 1956 | 7 |
| 1960 | 6 |
| 1963 | 20 |
| 1964 | 26 |
| 1965 | 15 |
| 1969 | 5 |
| 1981 | 5 |
| 1988 | 6 |
| 1990 | 6 |
| 2011 | 10 |