| Year | Count |
|---|---|
| 1919 | 17 |
| 1927 | 5 |
| 1936 | 5 |
| 1939 | 15 |
| 1949 | 10 |
| 1951 | 14 |
| 1953 | 12 |
| 1955 | 25 |
| 1956 | 34 |
| 1957 | 5 |
| 1959 | 5 |
| 1962 | 10 |
| 1969 | 5 |
| 1993 | 5 |
| 1998 | 5 |
| 2002 | 12 |
| 2003 | 14 |
| 2004 | 11 |
| 2005 | 38 |
| 2006 | 26 |
| 2007 | 28 |
| 2008 | 26 |
| 2009 | 22 |
| 2010 | 20 |
| 2011 | 43 |
| 2012 | 44 |
| 2013 | 18 |
| 2014 | 32 |
| 2015 | 14 |
| 2016 | 40 |
| 2017 | 52 |
| 2018 | 32 |
| 2019 | 42 |
| 2020 | 24 |
| 2021 | 31 |
| 2022 | 37 |
| 2023 | 32 |
| 2024 | 17 |