Year 2000 = 100 1980 35.33386578 1981 33.24540939 1982 24.53813657 1983 28.11464442 1984 31.29531936 1985 31.10966323 1986 30.65252878 1987 28.98337502 1988 32.93119514 1989 33.92953474 1990 32.745539 1991 33.45663703 1992 36.311538 1993 39.58328955 1994 36.98760658 1995 47.128896 1996 53.7865201 1997 65.98245551 1998 81.05997687 1999 88.52067454 2000 100 2001 104.1158492 2002 109.8749086 2003 119.7180453 2004 146.1253111 2005 164.1152374 2006 183.1400189 2007 222.8723127 2008 262.1268748 2009 184.858634 2010 223.3560125 2011 279.0031807 2012 285.1494206 2013 274.6524152 2014 277.1218017 2015 278.2734558 2016 264.7798137 2017 283.9557812 2018 305.9327891