| Year | Count |
|---|---|
| 1911 | 18 |
| 1914 | 5 |
| 1915 | 15 |
| 1916 | 11 |
| 1917 | 19 |
| 1918 | 15 |
| 1919 | 5 |
| 1920 | 14 |
| 1921 | 36 |
| 1921 | 9 |
| 1922 | 33 |
| 1923 | 19 |
| 1924 | 5 |
| 1925 | 40 |
| 1926 | 24 |
| 1927 | 50 |
| 1928 | 90 |
| 1928 | 6 |
| 1929 | 50 |
| 1930 | 21 |
| 1931 | 18 |
| 1932 | 24 |
| 1933 | 10 |
| 1934 | 7 |
| 1935 | 6 |
| 1936 | 12 |
| 1937 | 15 |
| 1937 | 5 |
| 1938 | 29 |
| 1939 | 7 |
| 1939 | 5 |
| 1940 | 11 |
| 1941 | 6 |
| 1942 | 14 |
| 1943 | 5 |
| 1944 | 5 |
| 1946 | 5 |
| 1947 | 6 |
| 1949 | 6 |
| 1951 | 5 |
| 1957 | 5 |
| 1958 | 8 |
| 1960 | 10 |
| 1962 | 5 |
| 1966 | 5 |
| 1967 | 6 |
| 1968 | 5 |
| 1970 | 7 |
| 1978 | 6 |
| 1985 | 16 |
| 1986 | 10 |
| 1987 | 12 |
| 1988 | 7 |
| 1995 | 8 |
| 2002 | 10 |
| 2003 | 6 |
| 2004 | 20 |
| 2005 | 22 |
| 2006 | 5 |
| 2007 | 10 |
| 2010 | 10 |
| 2017 | 5 |