Year	% gross
1970	6.23585987091064
1974	8.17772006988525
1975	9.13953971862793
1977	10.5493202209473
1978	10.6468801498413
1979	10.6958799362183
1980	9.94106006622314
1981	11.3546495437622
1982	11.4052896499634
1984	11.9330596923828
1985	12.0250797271729
1986	12.7029800415039
1987	13.0591497421265
1988	13.9928102493286
1989	13.6248998641968
1991	14.8561401367188
1995	16.7108497619629
1996	17.5568904876709
1997	20.2978591918945
1998	24.0934505462646
1999	22.4451999664307
2000	24.8249492645264
2001	25.5359592437744
2002	25.8332500457764
2004	28.78125
2005	31.4092693328857
2006	33.3292617797852
2007	34.3278503417969
2008	38.5062789916992
2009	38.9219093322754
2010	39.994270324707
2011	43.5446586608887
2012	44.9269790649414
2013	47.6036987304688
2014	49.63671875
2015	50.8959312438965
2016	53.0990295410156
2017	54.1846618652344
2018	53.2085800170898
2019	52.9191284179688
2020	51.7315292358398
2021	53.6022491455078
2022	54.4043884277344