Year	% gross
1971	73.3990325927734
1972	75.2180328369141
1973	79.1741409301758
1974	82.0453033447266
1975	85.4341888427734
1976	87.7863235473633
1977	88.4684906005859
1978	88.7262191772461
1979	88.4617462158203
1980	88.8915634155273
1981	90.1790390014648
1982	93.2516098022461
1983	95.0489501953125
1984	96.1012496948242
1985	96.5848999023438
1986	96.7402114868164
1987	97.7608489990234
1988	99.1026229858398
1989	99.9137725830078
1990	101.13404083252
1991	101.878303527832
1992	102.606147766113
1993	109.718017578125
1994	110.86897277832
1995	111.957130432129
1996	112.85090637207
1997	115.478469848633
1998	104.979423522949
1999	104.87686920166
2000	105.122367858887
2001	105.217231750488
2002	106.364212036133
2003	107.852996826172
2004	109.409881591797
2005	109.784301757812
2006	109.603439331055
2007	111.234497070312
2008	111.293968200684
2009	114.39266204834
2010	118.096908569336
2011	115.83373260498
2012	117.75218963623
2014	116.739097595215
2015	116.989868164062
2016	117.028717041016
2017	125.307121276855
2018	154.908294677734
2019	138.091217041016
2020	135.224670410156
2021	135.252197265625