|  | SUFFIX LETTERS
					 |  | PREFIX LETTERS
					 | 
				
					| A
					 | 1 February 1963 - 31 December 1963 | A
					 | 1 August 1983 - 31 July 1984 | 
				
					| B
					 | 1 January 1964 - 31 December 1964 | B
					 | 1 August 1984 - 31 July 1985 | 
				
					| C
					 | 1 January 1965 - 31 December 1965 | C
					 | 1 August 1985 - 31 July 1986 | 
				
					| D
					 | 1 January 1966 - 31 December 1966 | D
					 | 1 August 1986 - 31 Jul 1987 | 
				
					| E
					 | 1 January 1967 - 31 July 1967 | E
					 | 1 August 1987 - 31 July 1988 | 
				
					| F
					 | 1 August 1967 - 31 July 1968 | F
					 | 1 August 1988 - 31 July 1989 | 
				
					| G
					 | 1 August 1968 - 31 July 1969 | G
					 | 1 August 1989 - 31 July 1990 | 
				
					| H
					 | 1 August 1969 - 31 July 1970 | H
					 | 1 August 1990 - 31 July 1991 | 
				
					| J
					 | 1 August 1970 - 31 July 1971 | I
					 | 1 August 1991 - 31 July 1992 | 
				
					| K
					 | 1 August 1971 - 31 July 1972 | K
					 | 1 August 1992 - 31 July 1993 | 
				
					| L
					 | 1 August1972 - 31 July | L
					 | 1 August 1993 - 31 July 1994 | 
				
					| M
					 | 1 August 1973 - 31 July 1974 | M
					 | 1 August 1994 - 31 July 1995 | 
				
					| N
					 | 1 August 1974 - 31 July 1975 | N
					 | 1 August 1995 - 31 July 1996 | 
				
					| P
					 | 1 August 1975 - 31 July 1976 | P
					 | 1 August 1996 - 31 July 1997 | 
				
					| R
					 | 1 August 1976 - 31 July 1977 | R
					 | 1 August 1997 - 31 July 1998 | 
				
					| S
					 | 1 August 1977 - 31 July 1978 | S
					 | 1 August 1998 - 28 February 1999 | 
				
					| T
					 | 1 August 1978 - 31 July 1979 | T
					 | 1 March 1999 - 31 August 1999 | 
				
					| V
					 | 1 August 1979 - 31 July 1980 | V
					 | 1 September 1999 - 29 February 2000 | 
				
					| W
					 | 1 August 1980 - 31 July 1981 | W
					 | 1 March 2000 - 31 August 2000 | 
				
					| X
					 | 1 August 1981 - 31 July 1982 | X
					 | 1 September 2000 - 28 February 2001 | 
				
					| Y
					 | 1 August 1982 - 31 July 1983 | Y
					 | 1 March 2001 - 31 August 2001 | 
				
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