| Year | Count |
|---|---|
| 1913 | 5 |
| 1914 | 48 |
| 1915 | 56 |
| 1916 | 45 |
| 1917 | 49 |
| 1918 | 48 |
| 1919 | 23 |
| 1920 | 67 |
| 1921 | 24 |
| 1922 | 36 |
| 1923 | 33 |
| 1924 | 47 |
| 1925 | 24 |
| 1926 | 42 |
| 1927 | 18 |
| 1928 | 12 |
| 1929 | 19 |
| 1930 | 8 |
| 1931 | 6 |
| 1932 | 6 |
| 1934 | 6 |
| 1937 | 7 |
| 1940 | 10 |
| 1941 | 5 |
| 1942 | 14 |
| 1944 | 7 |
| 1946 | 6 |
| 1947 | 5 |
| 1951 | 7 |
| 1953 | 10 |
| 1957 | 5 |
| 1961 | 5 |
| 1966 | 5 |
| 1967 | 8 |
| 1969 | 6 |
| 1970 | 10 |
| 1971 | 9 |
| 1974 | 5 |
| 1975 | 5 |
| 1976 | 5 |
| 1981 | 5 |
| 1986 | 5 |
| 1987 | 10 |
| 1988 | 6 |
| 1989 | 13 |
| 1990 | 5 |
| 1991 | 10 |
| 1997 | 5 |
| 2001 | 6 |
| 2002 | 10 |
| 2004 | 5 |
| 2007 | 5 |
| 2008 | 6 |
| 2009 | 14 |
| 2010 | 5 |
| 2012 | 10 |
| 2014 | 31 |
| 2015 | 23 |
| 2016 | 10 |
| 2017 | 59 |
| 2018 | 27 |
| 2019 | 17 |
| 2020 | 16 |
| 2021 | 47 |
| 2022 | 23 |