Year 2015 = 100 1995 38.710865249 1996 40.9435408781 1997 39.6782091792 1998 38.0081755832 1999 38.8035294242 2000 41.0506941422 2001 39.7560165335 2002 36.471903252 2003 46.8655500083 2004 53.610523266 2005 60.5116470423 2006 72.6667686204 2007 82.5740467567 2008 92.3927273965 2009 71.6859308796 2010 97.8859328886 2011 118.4404034978 2012 124.121464027 2013 126.9046253923 2014 125.9379286715 2015 100 2016 98.5877218036 2017 114.2639498 2018 138.3431598549 2019 132.757782295 2020 123.2664724435 2021 165.1958120717