• 1948 to 1949 1
• 1950 to 1954 3,693
• 1955 to 1959 3,819
• 1960 to 1964 4,300
• 1965 to 1969 5,336
• 1970 to 1974 6,649
• 1975 to 1979 7,923
• 1980 to 1984 5,006
• 1985 to 1989 5,525
• 1990 to 1994 3,834
• 1995 to 1999 29
• 2000 to 2004 33
• 2005 to 2009 8
• 2010 to 2014 0
• 2015 to 2019 5