Year	% gross
1971	85.2298889160156
1972	85.3027725219727
1973	85.9869537353516
1974	87.2062530517578
1975	91.8231964111328
1976	93.5599517822266
1977	96.0457382202148
1978	96.7195434570312
1979	98.0344696044922
1980	96.1162872314453
1981	91.8765106201172
1982	87.3199462890625
1983	89.4284210205078
1984	94.3842620849609
1985	98.9526672363281
1986	102.268112182617
1987	104.299873352051
1988	105.730567932129
1989	105.344680786133
1990	101.914939880371
1991	98.3877792358398
1992	92.429801940918
1993	91.537483215332
1994	91.4959411621094
1995	93.0023880004883
1996	92.9408721923828
1997	93.0156326293945
1998	94.4448776245117
1999	96.171257019043
2000	96.9465103149414
2001	97.4037094116211
2002	97.5843734741211
2003	97.75927734375
2004	97.6218032836914
2005	96.7412033081055
2006	103.316886901855
2011	96.7540588378906
2012	99.5963973999023
2013	106.560157775879
2014	105.975662231445
2015	102.868728637695
2016	103.425003051758
2017	101.793823242188
2018	99.6138305664062
2019	98.6233596801758
2022	92.6726989746094