Year	% gross
1970	35.986759185791
1971	38.1782188415527
1972	40.8772315979004
1973	43.2178001403809
1974	44.1691703796387
1975	44.548469543457
1976	45.7304916381836
1977	47.1193618774414
1978	46.8642997741699
1979	45.8352813720703
1980	44.3090400695801
1981	43.7017288208008
1982	43.1875610351562
1983	42.9931983947754
1984	43.7776718139648
1985	44.6637306213379
1986	45.56201171875
1987	46.5396118164062
1988	47.2607383728027
1989	47.5077095031738
1990	48.3225708007812
1991	49.6255912780762
1992	50.8374481201172
1993	51.9363212585449
1994	52.094310760498
1995	52.6749801635742
1996	53.5716400146484
1997	54.3752098083496
1998	54.7215995788574
1999	54.8966102600098
2000	55.848518371582
2001	56.9434585571289
2002	58.8557090759277
2003	59.3188591003418
2004	60.6066093444824
2005	61.4459495544434
2006	61.9398193359375
2007	63.7903785705566
2008	65.263671875
2009	66.0868911743164
2010	68.0360794067383
2011	69.3792266845703
2012	70.2043228149414
2013	71.0415191650391
2014	71.8090515136719
2015	71.8517608642578
2016	71.9611129760742
2017	71.6366577148438
2018	72.2167510986328
2019	72.5168075561523
2020	73.4488296508789
2021	74.51416015625
2022	74.4443969726562