Year 2015 = 100 2000 26.2997631662 2001 29.3686880268 2002 29.92388347 2003 35.8623217855 2004 55.7149553284 2005 48.1526735094 2006 47.3260790278 2007 52.7944234363 2008 46.2628834607 2009 49.9356991173 2010 76.0527802888 2011 81.0133150891 2012 78.8042871798 2013 74.1374192171 2014 77.0615770049 2015 100 2016 98.8390413227 2017 94.6810177587 2018 90.1738115028 2019 86.3290886803 2020 80.320043943 2021 93.0636850772