• 1955 to 1959 2
• 1960 to 1964 2
• 1965 to 1969 1
• 1970 to 1974 5
• 1975 to 1979 7
• 1980 to 1984 17
• 1985 to 1989 22
• 1990 to 1994 36
• 1995 to 1999 101
• 2000 to 2004 176
• 2005 to 2009 313
• 2010 to 2014 352
• 2015 to 2019 336