• 1960 to 1960 17
• 1961 to 1961 1,702
• 1962 to 1962 2,004
• 1963 to 1963 1,863
• 1964 to 1964 1,062
• 1965 to 1965 510
• 1966 to 1966 984
• 1967 to 1967 1,758
• 1968 to 1968 1,581
• 1969 to 1969 956
• 1970 to 1970 858
• 1971 to 1971 310
• 1972 to 1972 1