Year % 2007 93.5477 2008 115.343 2009 90.3878 2010 99.4703 2011 105.3223 2012 103.9015 2013 98.0721 2014 96.4552 2015 88.5771 2016 88.9529 2017 96.4864 2018 99.6605 2019 93.8685