| Year | Count |
|---|---|
| 1942 | 5 |
| 1943 | 6 |
| 1946 | 22 |
| 1947 | 10 |
| 1948 | 16 |
| 1952 | 20 |
| 1955 | 10 |
| 1956 | 33 |
| 1957 | 106 |
| 1958 | 126 |
| 1959 | 197 |
| 1960 | 174 |
| 1961 | 209 |
| 1962 | 213 |
| 1963 | 167 |
| 1964 | 191 |
| 1965 | 125 |
| 1966 | 73 |
| 1967 | 86 |
| 1968 | 73 |
| 1969 | 52 |
| 1970 | 28 |
| 1971 | 36 |
| 1972 | 17 |
| 1974 | 10 |
| 1978 | 6 |
| 2018 | 12 |
| 2020 | 5 |
| 2021 | 10 |
| 2022 | 10 |
| 2023 | 5 |
| 2024 | 5 |