Year Index (2000=100) 1980 30.03708 1981 36.35357 1982 27.56766 1983 34.51254 1984 34.79781 1985 20.6948 1986 18.44933 1987 27.89196 1988 28.17734 1989 37.1826 1990 20.70626 1991 16.88161 1992 17.67311 1993 23.09736 1994 27.81867 1995 30.7522 1996 34.33331 1997 32.88869 1998 32.97448 1999 43.17264 2000 100 2001 94.03886 2002 107.87624 2003 140.69851 2004 209.11053 2005 267.00614 2006 313.1123 2007 491.46233 2008 645.95805 2009 457.02109 2010 631.20607 2011 564.20169