Year	% gross
1970	39.5739288330078
1971	40.9424781799316
1972	43.2076606750488
1973	45.4228401184082
1974	49.0478210449219
1975	49.7275199890137
1976	50.0871810913086
1977	54.4767189025879
1978	59.4724388122559
1979	65.7285003662109
1980	69.1907730102539
1981	73.4853897094727
1982	77.5230026245117
1983	77.922981262207
1984	77.3861923217773
1985	76.2950820922852
1986	72.0401000976562
1987	70.7419891357422
1988	67.4735107421875
1989	67.6197891235352
1990	66.7287979125977
1991	67.0588531494141
1992	68.5529937744141
1993	70.1289291381836
1994	70.4242706298828
1995	69.4931411743164
1996	66.8610229492188
1997	69.0792999267578
1998	70.8619232177734
1999	72.3267669677734
2000	75.1007232666016
2001	75.4071273803711
2002	74.9244537353516
2003	78.087043762207
2004	80.0896911621094
2005	82.0984802246094
2006	81.5907363891602
2007	82.0433502197266
2008	78.9340896606445
2009	80.0615310668945
2010	80.6006698608398
2011	82.1573333740234
2012	84.1918029785156
2013	84.6676788330078
2014	84.2755737304688
2015	82.9020767211914
2016	82.9005889892578
2017	83.293701171875
2018	84.4791793823242
2019	86.2049407958984
2020	86.9758224487305
2021	86.7832870483398
2022	86.8113784790039