Year % 2007 111.6378 2008 110.1415 2009 99.7889 2010 98.3592 2011 99.6363 2012 97.7685 2013 98.2854 2014 97.1044 2015 98.0552 2016 99.3194 2017 99.274 2018 99.3547 2019 98.7547