Year	% gross
1971	0.154530003666878
1972	0.154449999332428
1973	0.157800003886223
1974	0.231040000915527
1975	0.232549995183945
1976	0.287030011415482
1979	0.456050008535385
1980	0.47172999382019
1981	0.45074999332428
1982	0.499190002679825
1984	0.566399991512299
1985	0.586329996585846
1986	0.647909998893738
1987	0.631919980049133
1988	0.738439977169037
1989	0.738740026950836
1990	0.693710029125214
1991	0.770449995994568
1992	0.802900016307831
1993	0.847079992294312
1998	0.894710004329681
1999	0.94880998134613
2000	1.09112000465393
2001	1.06465995311737
2002	1.65049004554749
2004	2.15647006034851
2005	2.18656992912292
2006	2.21515011787415
2007	2.31571006774902
2008	2.55176997184753
2009	2.73604011535645
2010	3.12123990058899
2012	2.98822999000549
2013	3.79121994972229
2014	4.57692003250122
2015	5.39196014404297
2016	4.09006977081299
2017	4.43721008300781
2018	4.6985502243042
2021	6.28700017929077
2022	6.51700019836426