Year 2015 = 100 2000 18.7863925594 2001 20.3538449163 2002 23.4307171486 2003 27.6141793848 2004 35.7561165923 2005 40.2973308824 2006 44.2960135806 2007 54.8463803288 2008 75.9191462032 2009 58.5615168479 2010 61.2511571749 2011 76.2398869784 2012 85.7038324743 2013 94.3870842725 2014 97.8837148132 2015 100 2016 102.887956682 2017 97.2619642914 2018 88.3464929931 2019 104.7400180394 2020 87.0849019498 2021 111.4437182716