| Year | Count |
|---|---|
| 1911 | 5 |
| 1912 | 6 |
| 1913 | 25 |
| 1914 | 20 |
| 1915 | 61 |
| 1916 | 44 |
| 1917 | 80 |
| 1918 | 98 |
| 1919 | 62 |
| 1920 | 111 |
| 1921 | 50 |
| 1922 | 42 |
| 1923 | 77 |
| 1924 | 61 |
| 1925 | 74 |
| 1926 | 46 |
| 1927 | 24 |
| 1928 | 22 |
| 1929 | 12 |
| 1930 | 21 |
| 1931 | 14 |
| 1932 | 11 |
| 1933 | 13 |
| 1934 | 16 |
| 1937 | 5 |
| 1938 | 5 |
| 1939 | 5 |
| 1942 | 10 |
| 1944 | 6 |
| 1946 | 6 |
| 1948 | 5 |
| 1949 | 7 |
| 1953 | 9 |
| 1957 | 12 |
| 1958 | 10 |
| 1960 | 12 |
| 1962 | 7 |
| 1963 | 5 |
| 1966 | 6 |
| 1967 | 6 |
| 1995 | 5 |
| 1996 | 15 |
| 1997 | 8 |
| 1998 | 19 |
| 1999 | 18 |
| 2000 | 10 |
| 2001 | 38 |
| 2002 | 10 |
| 2003 | 5 |
| 2004 | 27 |
| 2005 | 37 |
| 2006 | 5 |
| 2007 | 10 |
| 2008 | 20 |
| 2009 | 36 |
| 2010 | 48 |
| 2011 | 5 |
| 2017 | 8 |
| 2019 | 5 |