Year	% gross
1971	77.4055480957031
1972	81.2348937988281
1973	84.3323669433594
1974	86.5967178344727
1975	87.5303802490234
1977	87.2879409790039
1978	87.3128433227539
1979	87.9765701293945
1980	89.0519332885742
1981	92.4237365722656
1982	90.0424880981445
1983	90.8809432983398
1985	92.8479614257812
1986	93.7589263916016
1987	94.9487533569336
1988	96.3986206054688
1989	98.1279678344727
1990	100.545600891113
1991	104.459426879883
1992	107.053558349609
1993	106.06462097168
1994	110.710731506348
1995	110.499397277832
1996	110.181457519531
1997	110.118522644043
1998	110.104751586914
1999	110.643951416016
2000	105.565856933594
2001	104.655410766602
2002	103.38053894043
2003	103.231269836426
2004	102.502822875977
2005	106.991889953613
2006	106.926139831543
2007	106.79029083252
2008	106.61882019043
2009	106.454376220703
2010	106.964630126953
2011	107.088279724121
2012	106.117530822754
2013	104.996017456055
2014	104.223556518555
2015	103.941093444824
2016	103.741958618164
2017	104.159187316895
2018	104.071128845215
2019	104.170417785645
2020	104.515426635742
2021	104.394401550293
2022	104.490348815918