Year	% gross
1970	53.191780090332
1971	52.9965782165527
1972	54.7488784790039
1973	58.0981483459473
1974	57.4646987915039
1975	58.4203910827637
1976	58.7239189147949
1977	60.4965705871582
1978	57.9760513305664
1979	58.4533081054688
1980	59.3666610717773
1981	61.0825691223145
1982	61.8967514038086
1983	63.2416191101074
1984	65.0165023803711
1985	65.7226867675781
1986	68.0353698730469
1987	67.1552124023438
1988	70.054328918457
1989	71.3868103027344
1990	72.0404586791992
1991	73.2016906738281
1992	74.2271728515625
1993	76.695930480957
1994	78.1173782348633
1995	78.0489501953125
1996	78.2370223999023
1997	78.4389038085938
1998	77.7976531982422
1999	78.381477355957
2000	79.8332214355469
2001	79.9580001831055
2002	82.1134414672852
2003	92.4061279296875
2004	94.3196487426758
2005	96.7628707885742
2006	98.3093032836914
2007	100.23030090332
2008	101.260986328125
2009	101.122520446777
2010	101.195922851562
2011	100.685722351074
2012	102.427391052246
2013	106.613487243652
2014	105.70719909668
2015	106.845809936523
2016	113.931602478027
2017	112.16960144043
2018	96.5075607299805
2019	96.1064910888672
2020	97.2856674194336
2021	98.0444793701172
2022	103.734329223633