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Commissioners: 94th Congress (1976)
Commissioners: 95th Congress (1977-1978)
Commissioners: 96th Congress (1979-1980)
Commissioners: 97th Congress (1981-1982)
Commissioners: 98th Congress (1983-1984)
Commissioners: 99th Congress (1985-1986)
Commissioners: 100th Congress (1987-1988)
Commissioners: 101st Congress (1989-1990)
Commissioners: 102nd Congress (1991-1992)
Commissioners: 103rd Congress (1993-1994)
Commissioners: 104th Congress (1995-1996)
Commissioners: 105th Congress (1997-1998)
Commissioners: 106th Congress (1999-2000)
Commissioners: 107th Congress (2001-2002)
Commissioners: 108th Congress (2003-2004)
Commissioners: 109th Congress (2005-2006)
Commissioners: 110th Congress (2007-2008)
Commissioners: 111th Congress (2009-2010)
Commissioners: 112th Congress (2011-2012)
Commissioners: 113th Congress (2013-2014)
Commissioners: 114th Congress (2015-2016)
Commissioners: 115th Congress (2017-2018)