| Year | Count |
|---|---|
| 1911 | 6 |
| 1912 | 20 |
| 1913 | 15 |
| 1914 | 17 |
| 1915 | 18 |
| 1916 | 27 |
| 1917 | 35 |
| 1918 | 66 |
| 1919 | 26 |
| 1920 | 25 |
| 1921 | 37 |
| 1922 | 18 |
| 1923 | 31 |
| 1924 | 41 |
| 1925 | 41 |
| 1926 | 30 |
| 1927 | 10 |
| 1928 | 17 |
| 1929 | 25 |
| 1930 | 12 |
| 1931 | 15 |
| 1932 | 9 |
| 1933 | 11 |
| 1934 | 8 |
| 1935 | 7 |
| 1940 | 7 |
| 1944 | 5 |
| 1950 | 14 |
| 1951 | 5 |
| 1974 | 5 |
| 1975 | 5 |
| 1984 | 5 |
| 1993 | 5 |
| 2000 | 9 |
| 2002 | 8 |
| 2003 | 5 |
| 2004 | 6 |
| 2005 | 6 |
| 2009 | 5 |
| 2010 | 5 |
| 2011 | 7 |
| 2012 | 7 |
| 2014 | 6 |
| 2015 | 6 |
| 2016 | 11 |
| 2017 | 10 |
| 2018 | 5 |
| 2019 | 17 |
| 2020 | 8 |
| 2021 | 9 |
| 2022 | 15 |
| 2023 | 25 |
| 2024 | 35 |