| Year | Count |
|---|---|
| 1916 | 5 |
| 1925 | 16 |
| 1926 | 10 |
| 1929 | 10 |
| 1931 | 5 |
| 1938 | 6 |
| 1953 | 6 |
| 1954 | 6 |
| 1958 | 10 |
| 1982 | 5 |
| 1987 | 5 |
| 1992 | 5 |
| 1993 | 8 |
| 1996 | 6 |
| 1998 | 5 |
| 1999 | 9 |
| 2001 | 6 |
| 2003 | 11 |
| 2004 | 9 |
| 2005 | 6 |
| 2006 | 11 |
| 2007 | 10 |
| 2008 | 22 |
| 2009 | 15 |
| 2010 | 17 |
| 2011 | 21 |
| 2012 | 16 |
| 2013 | 28 |
| 2014 | 23 |
| 2015 | 24 |
| 2016 | 66 |
| 2017 | 81 |
| 2018 | 41 |
| 2019 | 96 |
| 2020 | 86 |
| 2021 | 68 |
| 2022 | 72 |
| 2023 | 62 |
| 2024 | 54 |