Year	% gross
1970	15.1159296035767
1971	15.1598501205444
1972	15.8472499847412
1973	16.871000289917
1974	17.7041301727295
1975	18.6189002990723
1976	19.8548393249512
1977	20.6911106109619
1978	21.5438594818115
1979	21.5629196166992
1980	21.9996700286865
1981	22.42160987854
1982	22.9764709472656
1983	23.2759704589844
1984	23.8911094665527
1985	24.5737705230713
1986	25.2464294433594
1987	25.577169418335
1988	26.4006595611572
1989	27.7741203308105
1990	29.0004100799561
1991	30.6951503753662
1992	32.7728500366211
1993	35.7209205627441
1994	39.0407791137695
1995	41.4188194274902
1996	44.1626815795898
1997	46.9104194641113
1998	48.436939239502
1999	50.6196517944336
2000	52.6880493164062
2001	55.7115592956543
2002	58.7697792053223
2003	61.4783592224121
2004	64.0708923339844
2005	66.2245635986328
2006	68.0619125366211
2007	69.2011184692383
2008	70.7212677001953
2009	72.216911315918
2010	73.9068603515625
2011	74.7917098999023
2012	74.5418090820312
2013	74.6944427490234
2014	75.7709274291992
2015	76.6262512207031
2016	77.7973709106445
2017	79.3395309448242
2018	80.7960205078125
2019	82.1416015625
2020	83.3967895507812
2021	86.8781814575195
2022	86.9337310791016