Year 2000 = 100 1980 55.73240842 1981 64.43244175 1982 52.6429112 1983 55.94035467 1984 55.62204035 1985 55.34420798 1986 47.59142291 1987 56.65432093 1988 46.79520918 1989 37.44595429 1990 33.39855814 1991 41.51909947 1992 31.97589451 1993 41.31217582 1994 28.56361043 1995 69.25083487 1996 66.20798125 1997 67.97674356 1998 79.31744809 1999 105.2710581 2000 100 2001 95.08218817 2002 107.1244839 2003 116.5464091 2004 138.3941317 2005 166.3740136 2006 196.4080821 2007 216.2268116 2008 428.7601624 2009 334.2840184 2010 508.5514767 2011 600.357139 2012 671.1404504 2013 765.58995 2014 789.9724583 2015 703.2641518 2016 637.1707349 2017 733.3178959 2018 851.8411224