Year	% gross
1975	21.2148399353027
1976	21.4375190734863
1980	24.1009197235107
1981	25.4630393981934
1983	28.0717697143555
1986	31.6795597076416
1991	43.8439102172852
1992	41.6708297729492
1993	36.0175285339355
1994	24.286750793457
1995	25.5070095062256
1996	26.2548198699951
1997	28.5923595428467
2004	49.9361000061035
2005	63.3262405395508
2006	73.6969985961914
2007	72.1406173706055
2008	77.6303482055664
2009	72.4695434570313
2010	75.1274032592773
2011	79.5654373168945
2012	76.0910110473633
2013	77.8421936035156
2014	78.0429611206055
2015	79.3013229370117
2016	82.5417785644531
2017	85.1599426269531
2018	86.5833740234375
2019	85.6723175048828
2020	85.191032409668
2021	79.5087051391602