• 1947 to 1949 4
• 1950 to 1954 27
• 1955 to 1959 118
• 1960 to 1964 128
• 1965 to 1969 167
• 1970 to 1974 216
• 1975 to 1979 191
• 1980 to 1984 265
• 1985 to 1989 374
• 1990 to 1994 375
• 1995 to 1999 423
• 2000 to 2004 490
• 2005 to 2009 614
• 2010 to 2014 622
• 2015 to 2019 513