Year	% gross
2001	58.6979103088379
2002	59.8686485290527
2003	62.1275596618652
2004	64.147590637207
2005	65.9215621948242
2006	70.8294067382812
2007	70.6004180908203
2008	76.5467376708984
2009	76.2211227416992
2010	75.6873397827148
2011	73.5940170288086
2012	75.4114837646484
2013	76.5318069458008
2014	76.3096008300781
2015	76.1931533813477
2016	77.6462783813477
2017	77.0529937744141
2018	77.7693176269531