Year	% gross
1971	0.257459998130798
1972	0.338860005140305
1973	0.442620009183884
1974	0.614520013332367
1975	0.880219995975494
1976	1.55014002323151
1977	2.00609993934631
1978	2.48624992370605
1979	2.84179997444153
1980	3.22535991668701
1981	4.06124019622803
1982	4.68093013763428
1983	5.5375599861145
1984	6.21960020065308
1985	7.26847982406616
1986	8.14879989624023
1987	8.06149005889893
1991	9.81101989746094
1992	9.23013019561768
1993	12.1700096130371
1994	11.8039903640747
1995	13.5429000854492
1996	14.2000904083252
1997	14.2569398880005
1998	16.7202301025391
1999	21.4252490997314
2000	23.8118305206299
2001	25.1713409423828
2002	26.7128200531006
2003	33.4575500488281
2004	37.2112083435059
2005	38.096851348877
2006	36.8513488769531
2007	34.3983917236328
2008	34.5033493041992
2009	35.1037712097168
2011	40.7246208190918
2012	47.4466896057129
2013	53.6598281860352
2014	62.4789009094238
2015	67.017448425293
2016	73.70751953125
2017	78.7570266723633
2018	80.1422729492188
2019	84.7451705932617
2020	81.0759124755859
2021	76.6689300537109
2022	78.4519577026367