| Year | Count |
|---|---|
| 1913 | 5 |
| 1914 | 5 |
| 1915 | 15 |
| 1916 | 7 |
| 1917 | 16 |
| 1918 | 14 |
| 1919 | 19 |
| 1920 | 10 |
| 1991 | 5 |
| 1995 | 8 |
| 1997 | 16 |
| 1998 | 27 |
| 1999 | 7 |
| 2001 | 39 |
| 2003 | 10 |
| 2004 | 72 |
| 2005 | 46 |
| 2006 | 43 |
| 2007 | 56 |
| 2008 | 87 |
| 2009 | 21 |
| 2010 | 18 |
| 2011 | 65 |
| 2012 | 29 |
| 2013 | 7 |
| 2014 | 32 |
| 2015 | 53 |
| 2016 | 65 |
| 2017 | 13 |
| 2018 | 52 |
| 2019 | 20 |
| 2020 | 40 |
| 2021 | 15 |
| 2022 | 17 |
| 2023 | 31 |
| 2024 | 31 |