Year	% gross
1970	34.4729385375977
1971	36.8741683959961
1972	39.8580703735352
1973	42.5062599182129
1974	43.9404487609863
1975	44.4357299804688
1976	45.490550994873
1977	46.6016311645508
1978	46.2254295349121
1979	44.7926712036133
1980	42.6021499633789
1981	41.7281684875488
1982	40.856071472168
1983	40.7570381164551
1984	41.2400398254395
1985	42.4322700500488
1986	43.7247085571289
1987	45.091968536377
1988	46.1805114746094
1989	46.8827781677246
1990	48.1429405212402
1991	49.76171875
1992	51.3876991271973
1993	52.9800605773926
1994	53.7516593933105
1995	54.6901893615723
1996	56.0943412780762
1997	57.4193115234375
1998	58.2763900756836
1999	58.8761100769043
2000	60.1260185241699
2001	61.4949188232422
2002	64.1265869140625
2003	65.1347579956055
2004	66.6728515625
2005	68.1635437011719
2006	68.7424774169922
2007	71.4801864624023
2008	73.6306610107422
2009	75.0039978027344
2010	77.1069488525391
2011	79.0618209838867
2012	80.1787109375
2013	81.5463714599609
2014	83.3681793212891
2015	83.2948379516602
2016	83.5949935913086
2017	83.2521820068359
2018	83.9914703369141
2019	84.4994735717773
2020	85.6694488525391
2021	87.1419906616211
2022	87.7155532836914