Year	% gross
1970	1.13829004764557
1971	1.13763999938965
1972	1.16193997859955
1973	1.18204998970032
1974	1.21275997161865
1975	1.25733995437622
1976	1.28701996803284
1977	1.33360004425049
1978	1.3874499797821
1979	1.40796005725861
1980	1.46851003170013
1981	1.49926996231079
1982	1.53058004379272
1983	1.53944003582001
1984	1.55403995513916
1985	1.59467995166779
1986	1.6216299533844
1987	1.62549996376038
1988	1.65808999538422
1989	1.67104005813599
1990	1.69949996471405
1991	1.72221994400024
1992	1.7535400390625
1993	1.79137003421783
1994	1.83027005195618
1995	1.86256003379822
1996	1.92396998405457
1997	2.01805996894836
1998	2.11508011817932
1999	2.22207999229431
2000	2.46284008026123
2001	2.68380999565125
2002	2.98311996459961
2003	3.12210011482239
2004	3.39869999885559
2005	3.66777992248535
2006	4.0227198600769
2007	4.2674298286438
2008	4.63009023666382
2009	5.1022801399231
2010	5.56899976730347
2011	5.77622985839844
2012	6.21093988418579
2013	6.50974988937378
2014	6.67126989364624
2015	6.79374980926514
2016	6.80362987518311
2017	6.95182991027832
2018	7.1402702331543
2019	7.26529979705811
2020	7.73655986785889
2021	7.62657022476196