| Year | Count |
|---|---|
| 1912 | 5 |
| 1916 | 8 |
| 1919 | 6 |
| 1956 | 10 |
| 1981 | 6 |
| 1985 | 10 |
| 1993 | 8 |
| 1994 | 9 |
| 1995 | 6 |
| 1996 | 22 |
| 1999 | 5 |
| 2000 | 29 |
| 2001 | 23 |
| 2002 | 14 |
| 2003 | 12 |
| 2005 | 12 |
| 2006 | 37 |
| 2007 | 23 |
| 2008 | 55 |
| 2009 | 31 |
| 2010 | 31 |
| 2011 | 46 |
| 2012 | 55 |
| 2013 | 84 |
| 2014 | 65 |
| 2015 | 94 |
| 2016 | 98 |
| 2017 | 91 |
| 2018 | 101 |
| 2019 | 89 |
| 2020 | 84 |
| 2021 | 148 |
| 2022 | 78 |
| 2023 | 64 |
| 2024 | 84 |