| Year | Count |
|---|---|
| 1918 | 6 |
| 1923 | 5 |
| 1927 | 5 |
| 1947 | 6 |
| 1950 | 5 |
| 1955 | 32 |
| 1958 | 5 |
| 1959 | 7 |
| 1991 | 5 |
| 1994 | 5 |
| 1996 | 5 |
| 1998 | 18 |
| 1999 | 12 |
| 2002 | 5 |
| 2003 | 12 |
| 2004 | 27 |
| 2005 | 88 |
| 2006 | 142 |
| 2007 | 124 |
| 2008 | 92 |
| 2009 | 137 |
| 2010 | 134 |
| 2011 | 133 |
| 2012 | 200 |
| 2013 | 158 |
| 2014 | 187 |
| 2015 | 252 |
| 2016 | 188 |
| 2017 | 176 |
| 2018 | 130 |
| 2019 | 148 |
| 2020 | 181 |
| 2021 | 168 |
| 2022 | 172 |
| 2023 | 144 |
| 2024 | 106 |