| Year | Count |
|---|---|
| 1923 | 16 |
| 1927 | 20 |
| 1928 | 14 |
| 1942 | 6 |
| 1991 | 5 |
| 1992 | 5 |
| 1993 | 6 |
| 1996 | 5 |
| 1999 | 6 |
| 2000 | 9 |
| 2001 | 9 |
| 2002 | 9 |
| 2003 | 19 |
| 2004 | 12 |
| 2005 | 27 |
| 2006 | 18 |
| 2007 | 59 |
| 2008 | 85 |
| 2009 | 118 |
| 2010 | 122 |
| 2011 | 127 |
| 2012 | 113 |
| 2013 | 95 |
| 2014 | 111 |
| 2015 | 107 |
| 2016 | 339 |
| 2017 | 333 |
| 2018 | 321 |
| 2019 | 264 |
| 2020 | 212 |
| 2021 | 230 |
| 2022 | 222 |
| 2023 | 264 |
| 2024 | 228 |