Year 2015 = 100 1990 15.1147829959 1991 14.9245765939 1992 16.6683951321 1993 17.2236834969 1994 18.349720995 1995 20.9905238347 1996 21.7034080667 1997 22.7733190869 1998 21.4144606293 1999 20.912700304 2000 20.1347249359 2001 20.0989962732 2002 19.0985937444 2003 25.7246364632 2004 31.1245494776 2005 33.4871494637 2006 37.4712460448 2007 45.7326870592 2008 56.3863243939 2009 64.7013584083 2010 72.3667803759 2011 85.6532562901 2012 94.2714772409 2013 98.4103503787 2014 110.7367727683 2015 100 2016 86.6921335782 2017 88.0640425993 2018 107.6919049901 2019 105.0557074552 2020 88.6520529989 2021 118.5100026574