Year	% gross
1970	32.3189888000488
1971	31.6814994812012
1972	31.3251705169678
1973	31.2009906768799
1974	31.2873706817627
1975	31.4034996032715
1976	31.8346996307373
1977	32.5266418457031
1978	32.9734115600586
1979	33.1377906799316
1980	33.2901611328125
1981	33.5264511108398
1982	33.9225692749023
1983	34.623420715332
1984	35.5130805969238
1985	36.4556999206543
1986	36.9084587097168
1987	36.4950714111328
1988	36.0657005310059
1989	35.5505218505859
1990	35.1065788269043
1991	34.4687309265137
1992	33.5934715270996
1993	32.8262214660645
1994	32.8369903564453
1995	33.1987686157227
1996	34.3040199279785
1997	35.6518707275391
1998	36.8580513000488
1999	39.428150177002
2000	42.3434982299805
2001	46.1400604248047
2002	50.0218315124512
2003	52.9505195617676
2004	54.5971794128418
2005	56.9695281982422
2006	59.3227500915527
2007	61.3182907104492
2008	63.2387008666992
2009	64.74951171875
2010	66.3951721191406
2011	67.1932907104492
2012	67.0273208618164
2013	68.3880920410156
2014	69.3804321289062
2015	70.2869720458984
2016	71.8613662719727
2017	73.6036605834961
2018	75.7035827636719
2019	78.0065307617188
2020	79.7640762329102
2021	82.8819122314453
2022	83.1752166748047