Year	% gross
1999	41.5908393859863
2001	54.4231986999512
2002	57.2909698486328
2003	61.5683288574219
2004	64.3658065795898
2005	65.8638534545898
2006	66.6249084472656
2007	67.4706420898438
2008	69.1686019897461
2009	69.9449768066406
2010	68.5872497558594
2011	72.5597610473633
2012	70.9205169677734
2013	71.0353393554688
2014	71.603889465332
2015	74.9201965332031
2016	76.9300765991211
2017	74.3639221191406
2018	73.5172882080078
2019	75.5999526977539