Year	% gross
1971	78.2350311279297
1972	79.1244735717773
1973	79.0049896240234
1974	74.8732528686523
1975	80.7387619018555
1976	81.0343933105469
1977	81.2192611694336
1978	86.8043670654297
1979	89.2271423339844
1980	97.27490234375
1981	92.0705108642578
1982	95.5315475463867
1983	96.3139038085938
1984	99.0973815917969
1985	103.193313598633
1989	95.6122283935547
1990	84.3134307861328
1999	110.444328308105
2000	107.391967773438
2001	106.080253601074
2002	105.761741638184
2003	106.003257751465
2004	106.677429199219
2005	106.530937194824
2006	107.295829772949
2007	108.710762023926
2008	110.450660705566
2009	109.392509460449
2010	106.514549255371
2011	108.031028747559
2014	109.16577911377
2015	109.474700927734
2016	109.807319641113
2017	110.321731567383
2018	108.507553100586
2019	107.013603210449
2020	105.384017944336
2021	105.714286804199
2022	108.269378662109