Year % 2007 99.75 2008 99.74706 2009 99.73961 2010 99.98309 2011 99.99152 2012 99.90756 2013 101.00137 2014 100.74167 2015 106.24018 2016 99.89608 2017 116.94799 2018 122.88018 2019 121.19601 2020 130.69839 2022 117.356806347632