| Year | Count |
|---|---|
| 1911 | 9 |
| 1912 | 16 |
| 1913 | 17 |
| 1914 | 35 |
| 1915 | 42 |
| 1916 | 60 |
| 1917 | 43 |
| 1918 | 30 |
| 1919 | 23 |
| 1920 | 28 |
| 1921 | 28 |
| 1922 | 29 |
| 1923 | 48 |
| 1924 | 41 |
| 1925 | 19 |
| 1926 | 34 |
| 1927 | 7 |
| 1928 | 18 |
| 1929 | 22 |
| 1930 | 5 |
| 1931 | 9 |
| 1932 | 5 |
| 1933 | 5 |
| 1934 | 8 |
| 1935 | 7 |
| 1936 | 6 |
| 1941 | 5 |
| 1943 | 10 |
| 1945 | 7 |
| 1948 | 8 |
| 1951 | 8 |
| 1952 | 6 |
| 1957 | 10 |
| 1958 | 6 |
| 1959 | 6 |
| 1960 | 5 |
| 1963 | 5 |
| 1964 | 6 |
| 1973 | 5 |
| 1982 | 5 |
| 1995 | 5 |
| 1998 | 5 |
| 1999 | 5 |
| 2002 | 10 |
| 2004 | 10 |
| 2005 | 8 |
| 2006 | 5 |
| 2007 | 6 |
| 2008 | 5 |
| 2009 | 21 |
| 2010 | 11 |
| 2011 | 21 |
| 2012 | 5 |
| 2013 | 7 |
| 2014 | 29 |
| 2015 | 44 |
| 2016 | 41 |
| 2017 | 40 |
| 2018 | 55 |
| 2019 | 35 |
| 2020 | 71 |
| 2021 | 38 |
| 2022 | 65 |
| 2023 | 20 |
| 2024 | 22 |