Year	% gross
1970	23.2902698516846
1971	26.4719505310059
1972	30.0601406097412
1973	30.7533397674561
1974	42.6526298522949
1975	48.6823806762695
1976	51.5263214111328
1977	58.1758995056152
1978	62.148998260498
1979	64.2559814453125
1980	69.0017166137695
1981	69.0522384643555
1982	72.29736328125
1984	68.2660217285156
1985	78.0962066650391
1986	80.8422698974609
1988	83.0512008666992
1989	80.9821166992188
1990	82.6673126220703
1991	75.6803665161133
1992	87.3107070922852
1993	90.6681900024414
1994	91.5445327758789
1995	97.4801788330078
1996	99.0598678588867
1998	74.3517532348633
1999	77.5850219726563
2000	78.970573425293
2002	77.8390426635742
2003	75.2195434570313
2004	77.7339477539063
2005	81.8095779418945
2006	81.9105377197266
2007	84.018440246582
2008	83.6417922973633
2009	86.4186096191406
2010	108.156188964844
2011	113.28231048584
2012	114.30200958252
2013	79.0299987792969
2014	81.7144393920898
2015	82.3460922241211
2016	82.3652267456055
2017	81.763671875
2018	82.1542282104492
2019	84.8023986816406
2020	84.5110778808594