Year	% gross
1970	3.95669007301331
1971	4.71772003173828
1972	5.62389993667603
1973	6.44061994552612
1974	7.65536022186279
1975	8.89748001098633
1976	9.19657039642334
1977	9.40752983093262
1978	9.8122501373291
1979	10.4275302886963
1980	10.954719543457
1981	11.5582504272461
1982	11.8942804336548
1983	12.3495397567749
1984	12.8468799591064
1985	13.5671701431274
1986	14.1072301864624
1987	14.5772304534912
1988	15.0647602081299
1989	15.3267297744751
1990	15.385009765625
1991	15.7239904403687
1992	15.7272500991821
1993	15.7608003616333
1994	16.097620010376
1995	16.7380409240723
1996	17.6075801849365
1997	18.8840007781982
1998	20.5370006561279
1999	22.2455501556396
2000	23.6998195648193
2001	25.0107593536377
2002	27.0047302246094
2003	28.7381896972656
2004	30.2579193115234
2005	31.5574893951416
2006	35.088451385498
2007	36.2030296325684
2008	39.0005416870117
2009	40.571949005127
2010	42.2547912597656
2011	44.1503982543945
2012	45.9847984313965
2013	47.1681213378906
2014	49.1402702331543
2015	50.5658798217773
2016	53.0629692077637
2017	54.8545989990234
2018	55.9253082275391
2019	57.3726081848145
2020	60.0526885986328
2021	62.88916015625
2022	62.7259902954102