Year % 2007 97.0159 2008 98.0419 2009 95.9612 2010 94.7999 2011 101.3349 2012 95.3357 2013 92.9838 2014 97.1695 2015 98.4099 2016 98.2001 2017 98.5013 2018 96.5362 2019 98.622