| Year | Count |
|---|---|
| 1912 | 5 |
| 1913 | 27 |
| 1914 | 40 |
| 1915 | 48 |
| 1916 | 67 |
| 1917 | 53 |
| 1918 | 33 |
| 1919 | 48 |
| 1920 | 53 |
| 1921 | 44 |
| 1922 | 47 |
| 1923 | 53 |
| 1924 | 63 |
| 1925 | 48 |
| 1926 | 30 |
| 1927 | 42 |
| 1928 | 18 |
| 1929 | 18 |
| 1931 | 30 |
| 1932 | 29 |
| 1933 | 16 |
| 1934 | 35 |
| 1935 | 18 |
| 1936 | 15 |
| 1937 | 15 |
| 1938 | 6 |
| 1939 | 5 |
| 1943 | 10 |
| 1947 | 6 |
| 1952 | 5 |
| 1954 | 10 |
| 1956 | 7 |
| 1978 | 7 |
| 1982 | 5 |
| 1983 | 6 |
| 1986 | 6 |
| 1990 | 5 |
| 1991 | 7 |
| 1992 | 5 |
| 1993 | 5 |
| 1994 | 6 |
| 1995 | 6 |
| 1996 | 10 |
| 1997 | 7 |
| 1998 | 16 |
| 1999 | 5 |
| 2000 | 9 |
| 2001 | 6 |
| 2002 | 7 |
| 2004 | 8 |
| 2005 | 7 |
| 2006 | 7 |
| 2015 | 10 |
| 2019 | 5 |