Year 2015 = 100 2000 89.3251928308 2001 88.2462858585 2002 87.3452679622 2003 86.0938036186 2004 84.385388712 2005 84.9539206882 2006 83.6364404357 2007 81.8931876767 2008 83.1088775486 2009 90.8672002358 2010 87.7625438118 2011 81.6710096962 2012 87.3495418779 2013 89.8858624124 2014 90.6375474875 2015 100 2016 101.7372625401 2017 98.7149115011 2018 95.4422516201 2019 97.6717862805 2020 95.4515927129 2021 90.0611181728