Year	% gross
1977	68.2991409301758
1978	70.1643981933594
1979	72.1761474609375
1980	74.5554809570313
1981	77.1437911987305
1982	78.930793762207
1983	82.0679016113281
1984	83.1585464477539
1985	85.2447280883789
1986	87.4849014282227
1987	89.9546813964844
1988	92.1548461914063
1989	91.2978363037109
1990	90.492790222168
1991	90.92138671875
1992	90.3807373046875
1993	92.7719879150391
1994	94.6166610717773
1995	96.9409866333008
1996	97.4462203979492
1998	95.0649337768555
1999	92.6517181396484
2000	92.3984832763672
2001	91.8912582397461
2002	92.8602828979492
2003	94.0803985595703
2004	94.7563018798828
2005	98.3771514892578
2006	100.290992736816
2007	100.039176940918
2008	100.449607849121
2009	102.304061889648
2010	99.01123046875
2011	99.8736190795898
2012	99.418083190918
2013	102.834838867188
2014	105.458862304688
2015	104.944557189941
2016	105.006790161133
2017	103.588966369629
2018	102.811012268066
2019	102.693962097168
2020	102.872566223145