Year	% gross
1977	23.6055297851562
1978	24.1264991760254
1979	24.834400177002
1980	25.1548500061035
1981	25.3610095977783
1982	25.3840599060059
1983	24.9350395202637
1984	25.5731792449951
1985	27.9264698028564
1986	28.3703498840332
1987	29.8039798736572
1988	31.1829204559326
1989	31.9440402984619
1990	33.7606315612793
1991	35.2633399963379
1992	37.1393089294434
1993	38.4930801391602
1994	39.8599510192871
1995	40.5534515380859
1996	41.5471992492676
1998	42.8195381164551
1999	43.8498191833496
2000	43.4354286193848
2001	44.6169509887695
2002	45.0280418395996
2003	47.7786903381348
2004	49.1816711425781
2005	48.4797096252441
2006	48.6778717041016
2007	49.6682891845703
2008	49.876049041748
2009	50.0208511352539
2010	53.0815696716309
2011	53.13037109375
2012	54.752269744873
2013	55.8067512512207
2014	57.6541786193848
2015	59.9087982177734
2016	60.4229316711426
2017	60.9707717895508
2018	62.5908317565918
2019	64.1319808959961
2020	65.1489181518555
2021	68.1090698242188
2022	69.7369384765625