Year	% gross
1971	0
1976	3.11462998390198
1977	3.2418999671936
1980	5.86785984039307
1981	6.41686010360718
1982	8.38607978820801
1983	11.4224796295166
1984	12.7461595535278
1985	15.0162601470947
1986	17.1534996032715
1987	16.8420696258545
1988	16.4063701629639
1989	17.1911506652832
1990	17.9127197265625
1991	17.197940826416
1992	16.8701992034912
1993	18.5332202911377
1994	18.7837009429932
1995	20.2921199798584
1996	22.1956806182861
1997	23.6348896026611
1998	21.3995704650879
1999	19.6251792907715
2001	18.6874694824219
2002	17.2873592376709
2003	15.7512302398682
2004	16.8915996551514
2005	14.7242298126221
2006	12.8355398178101
2007	11.8196697235107
2008	11.3421602249146
2009	10.1654901504517
2010	9.64272975921631
2011	12.6008596420288
2012	12.2866897583008
2013	14.8707304000854
2014	17.306360244751
2015	15.9339895248413
2016	14.8163604736328
2017	16.7774391174316
2018	17.4458293914795
2019	21.0931396484375
2020	23.7649192810059
2021	31.281400680542
2022	35.0854911804199