Year Average 1990 = 100 1975-12-31 129.64 1976-12-31 112.31 1977-12-31 106.77 1978-12-31 107.15 1979-12-31 113.09 1980-12-31 124.43 1981-12-31 127.79 1982-12-31 123.26 1983-12-31 115.61 1984-12-31 111.42 1985-12-31 111.34 1986-12-31 101.38 1987-12-31 99.35 1988-12-31 105.34 1989-12-31 102.29 1990-12-31 100 1991-12-31 100.74 1992-12-31 96.9 1993-12-31 88.95 1994-12-31 89.18 1995-12-31 84.81 1996-12-31 86.28 1997-12-31 100.56 1998-12-31 103.91 1999-12-31 103.76 2000-12-31 107.53 2001-12-31 105.79 2002-12-31 106.02 2003-12-31 100.22 2004-12-31 104.1 2005-12-31 103.34