- 1952 to 1954 144
- 1955 to 1959 304
- 1960 to 1964 806
- 1965 to 1969 1,025
- 1970 to 1974 868
- 1975 to 1979 1,027
- 1980 to 1984 1,009
- 1985 to 1989 844
- 1990 to 1994 683
- 1995 to 1999 624
- 2000 to 2004 546
- 2005 to 2009 159
- 2010 to 2014 51
- 2015 to 2019 42
- 2020 to 2020 12