Year	% gross
1971	97.5456695556641
1972	96.5225677490234
1973	96.5068893432617
1974	97.8309936523438
1975	102.7099609375
1976	104.615417480469
1977	106.381393432617
1978	106.67066192627
1979	107.168472290039
1980	104.30980682373
1981	97.8788299560547
1982	94.4369888305664
1983	93.0168380737305
1984	97.3100128173828
1985	99.6892318725586
1986	102.148811340332
1987	103.106163024902
1988	104.554466247559
1989	104.670310974121
1990	100.56568145752
1991	98.3184661865234
1992	92.1518783569336
1993	90.7759017944336
1994	90.3398971557617
1995	91.7473220825195
1996	91.6333999633789
1997	91.7048416137695
1998	92.4050216674805
1999	93.8466262817383
2000	93.9407501220703
2001	94.2617034912109
2002	94.6728515625
2003	94.4737396240234
2004	94.7030868530273
2005	94.840087890625
2006	101.590881347656
2011	96.224967956543
2012	99.5238571166992
2013	105.874481201172
2014	105.241493225098
2015	102.214332580566
2016	102.698867797852
2017	100.925018310547
2018	98.7649765014648
2019	98.0046920776367
2022	92.3441925048828