Year	% gross
1970	36.7126998901367
1971	41.0390396118164
1972	46.1453895568848
1973	50.8316192626953
1974	53.6572418212891
1975	54.0014305114746
1976	55.0402717590332
1977	55.3065986633301
1978	53.480110168457
1979	50.2732810974121
1980	46.0712699890137
1981	44.0471992492676
1982	42.0780792236328
1983	40.988941192627
1984	41.1186714172363
1985	42.5183601379395
1986	44.0567588806152
1987	46.36328125
1988	48.1757698059082
1989	49.2146606445312
1990	49.993049621582
1991	51.722900390625
1992	53.553638458252
1993	55.0227584838867
1994	55.6308517456055
1995	57.2292594909668
1996	59.6724815368652
1997	61.4329490661621
1998	63.3955497741699
1999	64.9844818115234
2000	66.0737228393555
2001	68.3046112060547
2002	71.8211135864258
2003	72.1570205688477
2004	74.2355499267578
2005	75.8886108398438
2006	76.8293609619141
2007	81.1231994628906
2008	83.4708404541016
2009	86.7906036376953
2010	88.6403503417969
2011	89.9992294311523
2012	90.2083435058594
2013	93.0518035888672
2014	92.9552383422852
2015	93.2159729003906
2016	92.8935928344727
2017	93.4076232910156
2018	94.060791015625
2019	94.775520324707
2020	94.969841003418
2021	95.5206527709961
2022	95.8928298950195