| Year | Count |
|---|---|
| 1912 | 5 |
| 1913 | 8 |
| 1914 | 5 |
| 1915 | 13 |
| 1916 | 10 |
| 1917 | 8 |
| 1918 | 14 |
| 1919 | 10 |
| 1920 | 14 |
| 1921 | 12 |
| 1922 | 16 |
| 1923 | 5 |
| 1924 | 16 |
| 1925 | 16 |
| 1926 | 5 |
| 1927 | 8 |
| 1928 | 8 |
| 1929 | 12 |
| 1940 | 6 |
| 1941 | 5 |
| 1942 | 9 |
| 1944 | 8 |
| 1946 | 6 |
| 1947 | 15 |
| 1948 | 5 |
| 1949 | 5 |
| 1951 | 5 |
| 1961 | 10 |
| 1964 | 10 |
| 1965 | 10 |
| 1993 | 5 |
| 1996 | 10 |
| 1997 | 8 |
| 1998 | 6 |
| 2000 | 6 |
| 2005 | 8 |
| 2006 | 12 |
| 2007 | 18 |
| 2008 | 33 |
| 2009 | 29 |
| 2010 | 44 |
| 2011 | 77 |
| 2012 | 71 |
| 2013 | 78 |
| 2014 | 60 |
| 2015 | 116 |
| 2016 | 147 |
| 2017 | 102 |
| 2018 | 93 |
| 2019 | 105 |
| 2020 | 198 |
| 2021 | 319 |
| 2022 | 372 |
| 2023 | 411 |
| 2024 | 492 |