Year	% gross
1971	87.7783737182617
1972	88.1369323730469
1973	89.0771636962891
1974	90.3015670776367
1975	92.2214202880859
1976	96.7295684814453
1977	96.7804183959961
1978	97.6983032226562
1979	99.3619003295898
1980	100.540618896484
1987	98.1813125610352
1988	98.4255676269531
1989	98.3755798339844
1990	96.6577529907227
1998	83.1850814819336
2008	113.673141479492
2009	111.958358764648
2010	108.2490234375
2011	105.253219604492
2012	102.544540405273
2013	98.9718170166016
2014	97.3302764892578
2015	95.9883499145508
2016	95.3481063842773
2017	94.3327026367188
2018	93.8938827514648
2019	93.5865783691406
2020	93.5364608764648
2021	93.804069519043
2022	92.5341567993164