| Year | Count |
|---|---|
| 1911 | 6 |
| 1912 | 5 |
| 1913 | 5 |
| 1914 | 7 |
| 1915 | 6 |
| 1916 | 53 |
| 1917 | 23 |
| 1918 | 7 |
| 1919 | 19 |
| 1920 | 33 |
| 1921 | 5 |
| 1922 | 36 |
| 1923 | 24 |
| 1924 | 20 |
| 1925 | 24 |
| 1926 | 16 |
| 1927 | 31 |
| 1928 | 31 |
| 1929 | 14 |
| 1930 | 16 |
| 1931 | 19 |
| 1932 | 11 |
| 1933 | 5 |
| 1934 | 12 |
| 1935 | 17 |
| 1937 | 6 |
| 1938 | 6 |
| 1940 | 11 |
| 1943 | 6 |
| 1944 | 7 |
| 1955 | 6 |
| 1956 | 7 |
| 1957 | 6 |
| 1958 | 8 |
| 1961 | 30 |
| 1972 | 17 |
| 1973 | 54 |
| 1974 | 42 |
| 1975 | 5 |
| 2014 | 5 |
| 2015 | 11 |
| 2017 | 16 |
| 2018 | 49 |
| 2019 | 89 |
| 2020 | 68 |
| 2021 | 32 |
| 2022 | 35 |
| 2023 | 51 |
| 2024 | 23 |