| Year | Count |
|---|---|
| 1911 | 10 |
| 1912 | 9 |
| 1913 | 11 |
| 1914 | 8 |
| 1915 | 9 |
| 1916 | 11 |
| 1917 | 15 |
| 1918 | 13 |
| 1919 | 10 |
| 1920 | 11 |
| 1921 | 13 |
| 1922 | 32 |
| 1923 | 28 |
| 1924 | 24 |
| 1925 | 22 |
| 1926 | 32 |
| 1927 | 18 |
| 1928 | 22 |
| 1929 | 14 |
| 1930 | 28 |
| 1931 | 5 |
| 1932 | 6 |
| 1933 | 7 |
| 1934 | 8 |
| 1935 | 5 |
| 1936 | 8 |
| 1937 | 9 |
| 1938 | 5 |
| 1939 | 5 |
| 1941 | 5 |
| 1942 | 7 |
| 1943 | 6 |
| 1945 | 5 |
| 1946 | 6 |
| 1949 | 6 |
| 1951 | 7 |
| 1952 | 6 |
| 1953 | 6 |
| 1961 | 5 |
| 1962 | 6 |
| 2011 | 11 |
| 2012 | 5 |
| 2013 | 6 |
| 2014 | 8 |
| 2015 | 39 |
| 2016 | 30 |
| 2017 | 48 |
| 2018 | 16 |
| 2019 | 30 |
| 2020 | 20 |
| 2021 | 44 |
| 2022 | 22 |
| 2023 | 40 |
| 2024 | 52 |