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Civil Engineering
Division |
| 1976 April | 1976 November | 1977 April | 1977 November | |
| 1978 April | 1978 November | 1979 April | 1979 November | |
| 1980 April | 1980 November | 1981 April | 1981 November | |
| 1982 April | 1982 December | 1983 May | 1983 November | |
| 1984 May | 1984 November | 1985 November | ||
| 1986 April | 1986 November | 1987 April | 1987 November | |
| 1988 April | 1989 January | 1989 April | 1989 November | |
| 1990 April | 1990 November | 1991 January | ||
| 1992 March | 1992 November | 1993 February | 1993 December | |
| 1994 March | 1994 November | 1995 March | 1995 October | |
| 1996 December | 1997 March | |||
| 1998 April | 1998 December | 1999 April | 1999 November | |
| 2000 April | 2000 September | 2001 April | 2001 September | |
| 2002 April | 2002 September | 2003 April | ||
| 2004 September | 2005 April | 2005 September | ||
| 2006 April |