Year	% gross
1999	25.5612907409668
2000	24.7014999389648
2001	28.6161098480225
2003	30.9569606781006
2004	32.4748687744141
2005	30.2900695800781
2006	36.8608894348145
2008	57.3726692199707
2011	54.0875396728516
2012	52.2349815368652
2015	43.3619918823242