NERC 1949 - Pre-session
NERC 1951 - Second
NERC 1958 - Fourth
NERC 1960 - Fith
NERC 1962 - Sixth
NERC 1964 - 7th
NERC 1967 - 8th
NERC 1968 - 9th
NERC 1970 - 10th
NERC 1972 - 11th
NERC 1974 - 12th
NERC 1976 - 13th
NERC 1978 - 14th
NERC 1981 - 15th
NERC 1982 - 16th
NERC 1984 - 17th
NERC 1986 - 18th
NERC 1988 - 19th
NERC 1990 - 20th
NERC 1992 - 21st
NERC 1994 - 22nd
NERC 1996 - 23rd
NERC 1996 - 24th
NERC 2000 - 25th
NERC 2002 - 26th
NERC 2004 - 27th
NERC 2006 - 28th
NERC 2008 - 29th
NERC 2010 - 30th