Year	% gross
1970	39.2059783935547
1971	41.9380683898926
1972	45.3231506347656
1973	48.3123588562012
1974	49.7014694213867
1975	50.0844497680664
1976	51.3564491271973
1977	52.5679092407227
1978	51.7912101745605
1979	50.3134117126465
1980	48.1003608703613
1981	47.3410606384277
1982	46.4809799194336
1983	45.8661193847656
1984	46.6611709594727
1985	47.8367500305176
1986	49.2237091064453
1987	50.4221992492676
1988	51.4637794494629
1989	51.9931602478027
1990	53.2569618225098
1991	54.8372993469238
1992	56.3566398620605
1993	57.9201393127441
1994	58.166919708252
1995	58.8995513916016
1996	60.1397018432617
1997	61.215461730957
1998	61.6362991333008
1999	61.8358383178711
2000	62.9359397888184
2001	64.1428298950195
2002	66.4360122680664
2003	66.869270324707
2004	68.2509231567383
2005	69.5217208862305
2006	69.8482666015625
2007	72.2523727416992
2008	74.1826477050781
2009	75.0531616210938
2010	77.4584808349609
2011	79.2578582763672
2012	80.2477874755859
2013	80.9415893554688
2014	82.6240997314453
2015	82.7055587768555
2016	82.8996963500977
2017	82.7707672119141
2018	83.4563217163086
2019	83.9094924926758
2020	85.4103622436523
2021	87.1820068359375
2022	87.32373046875