Year	% gross
1970	4.38413000106812
1971	4.36264991760254
1972	4.35245990753174
1973	4.34961986541748
1974	4.3621997833252
1975	4.35596990585327
1976	4.43918991088867
1977	4.55604982376099
1978	4.76692008972168
1979	5.00085020065308
1980	5.07582998275757
1981	5.28611993789673
1982	5.3843297958374
1983	5.63139009475708
1984	5.87584018707275
1985	5.94616985321045
1986	5.87075996398926
1987	5.94227981567383
1988	5.89225006103516
1989	6.01244020462036
1990	6.0877799987793
1991	6.18733978271484
1992	6.13599014282227
1993	6.19929981231689
1994	6.22706985473633
1995	6.38995981216431
1996	7.01982021331787
1997	7.40146017074585
1998	8.06381034851074
1999	8.81188011169434
2000	9.37123966217041
2001	9.84922981262207
2002	10.3849096298218
2003	10.6679801940918
2004	11.0816698074341
2005	11.5293998718262
2006	12.3263101577759
2007	13.2902698516846
2008	14.606650352478
2009	15.2209196090698
2010	16.4652996063232
2011	18.9162693023682
2012	20.2592105865479
2013	20.8229007720947
2014	22.3336391448975
2015	23.0991191864014
2016	23.3693695068359
2017	23.5904293060303
2018	23.9290504455566
2019	24.9243793487549
2020	25.5990505218506
2021	26.4888801574707
2022	26.9969100952148