| Year | Count |
|---|---|
| 1911 | 13 |
| 1912 | 6 |
| 1913 | 7 |
| 1914 | 8 |
| 1916 | 7 |
| 1917 | 13 |
| 1918 | 6 |
| 1919 | 8 |
| 1920 | 5 |
| 1921 | 6 |
| 1923 | 7 |
| 1924 | 5 |
| 1925 | 6 |
| 1926 | 7 |
| 1927 | 5 |
| 1929 | 6 |
| 1931 | 7 |
| 1934 | 6 |
| 1939 | 7 |
| 1942 | 5 |
| 1999 | 5 |
| 2008 | 19 |
| 2009 | 26 |
| 2010 | 13 |
| 2011 | 46 |
| 2012 | 101 |
| 2013 | 108 |
| 2014 | 154 |
| 2015 | 218 |
| 2016 | 215 |
| 2017 | 223 |
| 2018 | 201 |
| 2019 | 294 |
| 2020 | 408 |
| 2021 | 373 |
| 2022 | 454 |
| 2023 | 398 |
| 2024 | 907 |