Year	% gross
1971	48.3647689819336
1972	47.7814407348633
1973	48.3865814208984
1974	48.5411109924316
1975	58.7641906738281
1976	60.1387710571289
1977	60.7859191894531
1978	62.7770195007324
1979	62.843448638916
1980	62.6742515563965
1981	80.5695495605469
1982	75.4113693237305
1983	78.3438491821289
1984	79.5313568115234
1986	77.798713684082
1987	78.2877426147461
1988	71.8322219848633
1992	69.1302871704102
1993	71.4072036743164
1994	73.2726974487305
1995	81.1305465698242
1996	84.8564910888672
1997	86.3210678100586
1998	88.8262481689453
1999	95.6297302246094
2000	94.742301940918
2001	93.217399597168
2002	93.0267105102539
2003	92.3356475830078
2004	91.4739227294922
2005	91.0098037719727
2006	92.0214920043945
2007	93.2321319580078
2008	94.2867965698242
2010	98.7217178344727
2011	99.0866088867188
2012	98.9712677001953
2013	102.205078125
2014	103.799011230469
2015	102.476982116699
2016	104.356483459473
2017	105.422721862793
2018	105.299560546875
2019	106.307792663574
2020	106.61311340332
2021	105.544898986816