Year	% gross
1970	25.2118091583252
1971	25.4024391174316
1972	27.695499420166
1973	29.1820907592773
1974	30.6489601135254
1975	32.9503211975098
1976	35.2779998779297
1977	37.5733795166016
1978	39.4816207885742
1979	40.7965812683105
1980	41.8194389343262
1981	42.5616188049316
1982	43.8083801269531
1983	44.609001159668
1984	45.5771217346191
1985	46.7528495788574
1986	48.9992904663086
1987	50.3030395507812
1988	50.9778213500977
1989	52.2342987060547
1990	55.4823799133301
1991	55.8492317199707
1992	55.4543800354004
1993	57.0121192932129
1994	59.7551612854004
1995	59.9692993164062
1996	60.1341896057129
1997	61.6171188354492
1998	63.3383483886719
1999	64.9950103759766
2000	66.2228393554688
2001	67.3576202392578
2002	68.1987609863281
2003	69.1694030761719
2004	69.9852523803711
2005	69.4609832763672
2006	69.512077331543
2007	68.0326614379883
2008	68.8559036254883
2009	70.3765182495117
2010	71.1153182983398
2011	74.5189819335938
2012	75.3866882324219
2013	72.8230285644531
2014	73.1591110229492
2015	73.010871887207
2016	73.1399383544922
2017	73.1945419311523
2018	73.4563522338867
2019	73.9465637207031
2020	74.6710205078125
2021	75.5776062011719
2022	76.05859375