| Year | Count |
|---|---|
| 1910 | 6 |
| 1913 | 10 |
| 1914 | 6 |
| 1915 | 12 |
| 1916 | 12 |
| 1919 | 6 |
| 1920 | 10 |
| 1921 | 39 |
| 1922 | 9 |
| 1923 | 38 |
| 1924 | 29 |
| 1925 | 41 |
| 1926 | 63 |
| 1927 | 171 |
| 1928 | 283 |
| 1929 | 190 |
| 1930 | 123 |
| 1931 | 66 |
| 1932 | 33 |
| 1933 | 14 |
| 1971 | 5 |
| 2013 | 15 |
| 2014 | 63 |
| 2015 | 46 |
| 2016 | 85 |
| 2017 | 148 |
| 2018 | 129 |
| 2019 | 172 |
| 2020 | 218 |
| 2021 | 347 |
| 2022 | 418 |
| 2023 | 544 |
| 2024 | 608 |