Year	% gross
1970	53.5124702453613
1971	54.1987609863281
1972	55.4237899780273
1973	56.7276191711426
1974	58.9538192749023
1975	60.5930290222168
1976	61.7495498657227
1977	65.1109771728516
1978	68.8773498535156
1979	73.3311080932617
1980	76.3940811157227
1981	78.9502487182617
1982	81.0272674560547
1983	81.0469589233398
1984	80.2513885498047
1985	77.876106262207
1986	75.2285614013672
1987	73.4258804321289
1988	72.1973876953125
1989	72.6604919433594
1990	71.6488265991211
1991	72.5221786499023
1992	72.3222732543945
1993	73.2907333374023
1994	73.4435424804688
1995	74.0454177856445
1996	72.2234802246094
1997	76.0989379882812
1998	77.3641510009766
1999	77.8727569580078
2000	80.2596664428711
2001	82.2883911132812
2002	84.6866836547852
2003	87.4674682617188
2004	89.6902008056641
2005	92.259407043457
2006	94.1707611083984
2007	95.1417770385742
2008	96.4959182739258
2009	96.9052886962891
2010	96.7088623046875
2011	97.986930847168
2012	98.6878204345703
2013	98.8278198242188
2014	97.9636535644531
2015	96.9748306274414
2016	96.7461090087891
2017	97.2761764526367
2018	97.9807510375977
2019	98.8742904663086
2020	99.6197280883789
2021	98.8165130615234
2022	98.8512878417969