Year	% gross
1970	71.5029983520508
1971	66.6682586669922
1972	67.7787399291992
1973	74.181037902832
1974	77.6307525634766
1975	84.1522827148438
1976	87.5104293823242
1977	92.1812591552734
1978	94.5039215087891
1979	98.1621932983398
1980	102.990013122559
1981	104.632209777832
1982	104.740516662598
1983	106.545806884766
1984	106.862251281738
1985	107.972763061523
1986	107.32829284668
1987	107.598937988281
1988	107.832801818848
1989	108.543991088867
1990	107.887733459473
1991	109.783142089844
1992	107.232940673828
1993	105.532096862793
1994	104.806632995605
1995	103.599853515625
1996	104.218460083008
1997	104.70133972168
1998	103.400421142578
1999	103.572540283203
2000	103.616821289062
2001	104.684989929199
2002	104.518356323242
2003	104.888732910156
2004	104.511337280273
2005	105.034660339355
2006	105.188606262207
2007	103.867362976074
2008	103.367393493652
2009	103.261207580566
2012	100.562393188477
2013	99.4841613769531
2014	97.5000076293945
2015	96.9943313598633
2021	92.9931716918945