Year	% gross
2009	86.4671783447266
2010	84.4172515869141
2011	81.9591217041016
2012	82.7264022827148
2013	86.4347534179688
2014	89.2496490478516
2015	98.8388290405273
2016	88.1868286132812
2018	92.1134719848633