Year 2015 = 100 2000 33.2167031883 2001 34.9277485834 2002 30.015975125 2003 31.2293555163 2004 37.0766668571 2005 38.2090002864 2006 43.769914462 2007 59.2898308918 2008 79.3397123884 2009 78.1032666173 2010 73.0003228873 2011 80.4953136199 2012 93.2906780021 2013 104.5485774817 2014 112.0487090971 2015 100 2016 101.095090928 2017 103.5718547073 2018 142.0705653656 2019 181.7882733929 2020 166.1361017695 2021 177.2863715907