Year 2000 = 100 1980 46.52032 1981 48.30892748 1982 59.43089431 1983 58.86178862 1984 50.89430894 1985 50 1986 53.33333333 1987 52.11382114 1988 60.48780488 1989 69.83739837 1990 81.38211382 1991 98.21138211 1992 120.4878049 1993 148.1300813 1994 150.7317073 1995 188.8888889 1996 225.2935863 1997 199.0063234 1998 140.1987353 1999 121.2285456 2000 100 2001 104.6973803 2002 140.5600723 2003 119.8735321 2004 128.4552846 2005 134.6883469 2006 151.4168925 2007 189.7672087 2008 232.3274616 2009 221.2214995 2010 229.2492693 2011 327.7973803 2012 322.6943993 2013 326.3265583 2014 325.0894018 2015 291.696206 2016 241.9607949 2017 278.6390244 2018 472.4480578