Year 2015 = 100 1992 5.7962982428 1993 6.823462101 1994 12.7830097669 1995 14.5047190859 1996 14.328105159 1997 20.1419844113 1998 19.2420290427 1999 16.0362425792 2000 16.6676047639 2001 15.6158835852 2002 16.481930192 2003 17.0354532007 2004 23.2797473963 2005 30.9915228022 2006 35.7951401959 2007 43.8324124051 2008 54.9759755612 2009 55.5364656571 2010 79.9599478258 2011 98.6816075807 2012 99.232831105 2013 106.8063984989 2014 112.3863129347 2015 100 2016 95.7064900331 2017 103.703195259 2018 92.8029652984 2019 94.086556609 2020 111.7994302867 2021 135.5321412603