| Year | Count |
|---|---|
| 1919 | 6 |
| 1920 | 5 |
| 1942 | 6 |
| 1954 | 5 |
| 1961 | 6 |
| 1973 | 5 |
| 1975 | 6 |
| 1995 | 39 |
| 1996 | 6 |
| 1997 | 9 |
| 1998 | 60 |
| 1999 | 71 |
| 2000 | 50 |
| 2001 | 59 |
| 2002 | 30 |
| 2003 | 69 |
| 2004 | 81 |
| 2005 | 46 |
| 2006 | 50 |
| 2007 | 43 |
| 2008 | 75 |
| 2009 | 29 |
| 2010 | 5 |
| 2011 | 18 |
| 2012 | 5 |
| 2014 | 16 |
| 2015 | 8 |
| 2016 | 11 |
| 2017 | 16 |
| 2018 | 9 |
| 2019 | 15 |
| 2020 | 7 |
| 2021 | 15 |
| 2022 | 9 |
| 2023 | 22 |
| 2024 | 61 |