Year % 2007 93.18531 2008 84.53018 2009 88.82435 2010 92.2574 2011 77.16892 2012 78.82853 2013 73.13664 2014 88.65184 2015 69.77439 2016 87.17525 2017 103.28326 2018 87.12672 2019 107.17571 2020 105.95552