• 1960 to 1960 15
• 1961 to 1961 14
• 1962 to 1962 21
• 1963 to 1963 14
• 1964 to 1964 22
• 1965 to 1965 13
• 1966 to 1966 10
• 1967 to 1967 10
• 1968 to 1968 8
• 1969 to 1969 10