| Year | Count |
|---|---|
| 1910 | 94 |
| 1911 | 35 |
| 1912 | 80 |
| 1913 | 56 |
| 1914 | 129 |
| 1915 | 134 |
| 1916 | 189 |
| 1917 | 133 |
| 1918 | 171 |
| 1919 | 161 |
| 1920 | 143 |
| 1921 | 122 |
| 1922 | 92 |
| 1923 | 128 |
| 1924 | 75 |
| 1925 | 79 |
| 1926 | 105 |
| 1927 | 94 |
| 1928 | 28 |
| 1929 | 19 |
| 1930 | 39 |
| 1931 | 24 |
| 1932 | 22 |
| 1933 | 10 |
| 1934 | 26 |
| 1935 | 85 |
| 1936 | 67 |
| 1937 | 16 |
| 1938 | 32 |
| 1939 | 20 |
| 1940 | 12 |
| 1941 | 8 |
| 1942 | 5 |
| 1950 | 7 |
| 1958 | 6 |
| 1959 | 14 |
| 2004 | 6 |
| 2007 | 13 |
| 2008 | 5 |
| 2009 | 5 |
| 2010 | 6 |
| 2011 | 6 |
| 2013 | 5 |
| 2014 | 11 |
| 2016 | 15 |
| 2017 | 10 |
| 2018 | 22 |
| 2019 | 20 |
| 2020 | 20 |
| 2021 | 21 |
| 2022 | 23 |
| 2023 | 7 |