Year	% gross
1971	74.2831726074219
1974	73.9631500244141
1975	76.0172119140625
1976	81.5329818725586
1977	80.6067123413086
1978	76.7486114501953
1979	68.0123062133789
1980	65.5354232788086
1981	64.9066925048828
1982	66.1501770019531
1983	68.7572174072266
1984	69.6622924804688
1985	72.393798828125
1986	73.5456695556641
1987	73.0604400634766
1988	71.7469711303711
1989	71.1288528442383
1990	70.6943664550781
1991	70.5403289794922
1992	70.6423034667969
1993	71.0565185546875
1994	72.6060104370117
2001	102.394943237305
2002	100.428237915039
2003	81.9732513427734
2004	83.7176284790039
2005	86.3397674560547
2006	83.7852630615234
2007	82.6045532226563
2008	82.6335906982422
2009	82.1410827636719
2010	79.4074020385742
2013	110.109977722168
2014	115.118141174316
2015	126.215881347656
2016	170.458587646484
2017	167.745483398438
2018	169.29345703125
2019	169.48991394043
2020	163.339294433594