• 1898 to 1899 2
• 1900 to 1909 10
• 1910 to 1919 10
• 1920 to 1929 10
• 1930 to 1939 10
• 1940 to 1949 10
• 1950 to 1959 10
• 1960 to 1969 7
• 1970 to 1979 8
• 1980 to 1989 10
• 1990 to 1994 5