Year 2010 = 100 1991 26.1186567991574 1992 28.7027074671545 1993 35.3867148955042 1994 40.1340268307556 1995 44.0836548589168 1996 46.6298508786518 1997 49.4938516547481 1998 52.7929391873164 1999 58.3733859970065 2000 65.3990786628971 2001 70.1925827374023 2002 72.3876046344033 2003 78.5797438882421 2004 84.5113365485892 2005 86.8008204445922 2006 90.6923887133433 2007 93.1925273019568 2008 97.4776872332169 2009 99.052053883253 2010 100 2011 103.919285991463 2012 107.666722102112 2013 109.174566217639 2014 109.091413049504 2015 108.736626198791 2016 108.171184655469 2017 109.590332058318 2018 112.345473695881 2019 115.338987748766 2020 117.573036199346 2021 121.276123953656 2022 136.768113531792 2023 151.172459670713