| Year | Count |
|---|---|
| 1910 | 5 |
| 1913 | 5 |
| 1914 | 6 |
| 1915 | 16 |
| 1916 | 5 |
| 1917 | 20 |
| 1918 | 22 |
| 1919 | 25 |
| 1921 | 12 |
| 1922 | 14 |
| 1923 | 14 |
| 1924 | 14 |
| 1925 | 14 |
| 1926 | 12 |
| 1928 | 10 |
| 1929 | 6 |
| 1930 | 15 |
| 1931 | 5 |
| 1932 | 13 |
| 1933 | 5 |
| 1935 | 5 |
| 1936 | 9 |
| 1937 | 11 |
| 1938 | 5 |
| 1939 | 7 |
| 1956 | 5 |
| 1971 | 5 |
| 2009 | 12 |
| 2010 | 16 |
| 2011 | 5 |
| 2012 | 36 |
| 2013 | 14 |
| 2014 | 22 |
| 2015 | 28 |
| 2016 | 49 |
| 2017 | 72 |
| 2018 | 88 |
| 2019 | 79 |
| 2020 | 40 |
| 2021 | 38 |
| 2022 | 86 |
| 2023 | 68 |
| 2024 | 59 |