2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 % 66.866996663308 66.7 66.8 64.36 70.1 64.93 65.46 72.77 75.2 76.6 77.01 73.8 74.367 76.846 73.440817253003 72.071159281409 69.956271462343 69.639529269524 60.729782776