Year 2000 = 100 1980 304 1981 302 1982 297 1983 272 1984 229 1985 248 1986 265 1987 306 1988 313 1989 320 1990 343 1991 327 1992 292 1993 245 1994 241 1995 269 1996 227 1997 241 1998 170 1999 113 2000 100 2001 97.38746102 2002 97.32849904 2003 104.7699888 2004 114.2226423 2005 122.6216167 2006 129.6669643 2007 141.4086681 2008 156.7903523 2009 148.530495 2010 153.6952126 2011 178.5172893 2012 177.5621601 2013 173.8285115 2014 170.8518379 2015 150.2235714 2016 143.642691 2017 148.0919956 2018 158.6673972