• 1960 to 1960 7
• 1961 to 1961 5
• 1962 to 1962 2
• 1963 to 1963 3
• 1964 to 1964 3
• 1965 to 1965 7
• 1966 to 1966 2
• 1967 to 1967 2
• 1968 to 1968 8
• 1969 to 1969 9
• 1970 to 1970 38
• 1971 to 1971 21
• 1972 to 1972 13