Year % gross 2003 89.6166076660156 2004 90.249397277832 2005 91.3751983642578 2006 92.996467590332 2007 94.1652221679688 2008 88.6143417358398 2009 96.5844802856445 2010 99.3498382568359 2011 93.0707168579102 2012 92.3928833007812 2015 92.4030532836914 2016 91.2375793457031 2017 91.740837097168 2018 92.5965194702148 2019 92.4608612060547 2020 92.5546569824219 2021 93.086067199707 2022 91.0736694335938