| Year | Count |
|---|---|
| 1912 | 10 |
| 1913 | 12 |
| 1914 | 22 |
| 1915 | 69 |
| 1916 | 73 |
| 1917 | 31 |
| 1918 | 56 |
| 1919 | 30 |
| 1920 | 43 |
| 1921 | 45 |
| 1922 | 49 |
| 1923 | 52 |
| 1924 | 35 |
| 1925 | 34 |
| 1926 | 19 |
| 1927 | 24 |
| 1928 | 17 |
| 1929 | 20 |
| 1930 | 17 |
| 1931 | 16 |
| 1932 | 11 |
| 1933 | 17 |
| 1934 | 20 |
| 1936 | 11 |
| 1937 | 28 |
| 1938 | 7 |
| 1939 | 11 |
| 1940 | 53 |
| 1941 | 34 |
| 1942 | 53 |
| 1943 | 40 |
| 1944 | 15 |
| 1945 | 6 |
| 1946 | 15 |
| 1947 | 21 |
| 1948 | 15 |
| 1949 | 20 |
| 1950 | 10 |
| 1951 | 18 |
| 1952 | 5 |
| 1956 | 7 |
| 1961 | 7 |
| 1962 | 5 |
| 1963 | 6 |
| 1964 | 17 |
| 1966 | 7 |
| 1981 | 6 |
| 1986 | 14 |
| 1991 | 17 |
| 1994 | 5 |
| 2007 | 5 |
| 2008 | 22 |
| 2009 | 13 |
| 2011 | 5 |
| 2012 | 15 |
| 2015 | 34 |
| 2016 | 12 |
| 2018 | 12 |
| 2019 | 11 |
| 2020 | 11 |
| 2022 | 6 |
| 2024 | 5 |