Year	% gross
1970	8.33915996551514
1971	10.4641103744507
1972	12.8711700439453
1973	14.4594802856445
1974	14.0155601501465
1975	14.1365299224854
1976	12.3944301605225
1977	11.9254903793335
1978	11.6208400726318
1979	11.0983400344849
1980	12.4894599914551
1982	13.2062397003174
1983	14.7105703353882
1984	15.4065799713135
1985	16.0157699584961
1986	17.274450302124
1987	17.9851093292236
1988	18.7719306945801
1991	20.8207397460938
1992	23.6541194915771
1993	25.8770694732666
1994	26.7059307098389
1995	27.3324699401855
1996	29.2319793701172
1997	30.228759765625
1998	32.1894683837891
1999	35.5736618041992
2000	35.4313201904297
2002	40.2664985656738
2003	43.5181999206543
2004	44.3284606933594
2005	50.2735595703125
2006	49.3216896057129
2007	54.7230491638184
2008	56.7743988037109
2009	59.9912910461426
2010	66.3445205688477
2011	70.8241806030273
2012	75.0770721435547
2013	79.8703384399414
2014	83.6629791259766
2015	86.4181137084961
2016	88.8458862304688
2017	89.921989440918
2018	91.1974792480469
2019	92.0659713745117
2020	89.1124877929688
2021	96.2227935791016
2022	99.3372802734375