• 1960 to 1960 10
• 1961 to 1961 6
• 1962 to 1962 4
• 1963 to 1963 6
• 1964 to 1964 3
• 1965 to 1965 6
• 1966 to 1966 16
• 1967 to 1967 10
• 1968 to 1968 5
• 1969 to 1969 5
• 1970 to 1970 24
• 1971 to 1971 13
• 1972 to 1972 6