Year	% gross
1970	66.1730422973633
1971	75.7372207641602
1972	74.7923202514648
1973	72.1349563598633
1974	71.2903823852539
1975	74.1142501831055
1976	77.5395965576172
1977	72.3132629394531
1978	69.8954772949219
1979	67.5845718383789
1980	69.7258834838867
1981	68.3880767822266
1982	69.4949493408203
1983	77.4392929077148
1984	81.4279479980469
1985	79.9240264892578
1986	79.4613265991211
1987	82.8077392578125
1990	86.0054626464844
1991	86.4426193237305
1992	91.8692626953125
1993	96.3943023681641
1994	99.5343627929688
1995	102.60228729248
1996	87.97119140625
1997	102.807037353516
1999	85.5113067626953
2000	82.7942581176758
2002	91.9196929931641
2005	97.3460006713867
2006	102.32177734375
2007	103.536552429199
2010	112.374519348145
2011	113.445846557617
2012	110.876579284668
2013	111.979187011719
2014	111.330543518066
2015	111.437057495117
2016	112.174583435059
2017	110.800369262695
2018	105.16194152832
2019	104.318099975586