Circular years 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977 1976 1975 1974 1973 1972 1971 1970 1969 1968 1967 1966 1965 1964 1963 1962

CIRCULAR NO. 1/2005, DATED 1/6/2005

CIRCULAR NO. 2/2005, DATED 1/12/2005

CIRCULAR NO. 3/2005, DATED 3/6/2005

CIRCULAR NO. 4/2005, DATED 4/6/2005

CIRCULAR NO. 6/2005, DATED 25/07/2005

CIRCULAR NO. 5/2005, DATED 15/07/2005

CIRCULAR NO. 7/2005, DATED 24/08/2005

CIRCULAR NO. 8/2005, DATED 29/08/2005

CIRCULAR NO. 9/2005, DATED 30/11/2005

CIRCULAR NO.10/2005, DATED 16/12/2005