Year	% gross
1975	38.2847290039062
1976	39.6888008117676
1977	41.4820518493652
1978	41.2147407531738
1979	37.9043998718262
1980	33.1632881164551
1981	30.3552093505859
1982	27.8182201385498
1983	26.9621295928955
1984	27.0513896942139
1985	28.6323509216309
1986	29.7021198272705
1987	32.4843406677246
1988	34.1271514892578
1989	35.1608390808105
1990	35.4175605773926
1991	37.3384208679199
1992	39.8623886108398
1993	41.7920799255371
1994	43.501651763916
1995	45.8489608764648
1996	49.066219329834
1997	51.5185699462891
1998	53.6945190429688
1999	55.6211814880371
2000	57.0995101928711
2001	59.6460990905762
2002	60.8737182617188
2003	62.5648002624512
2004	65.82666015625
2005	68.4212188720703
2006	71.5300521850586
2007	75.5082626342773
2008	78.5225830078125
2009	83.2553863525391
2010	84.4089508056641
2011	85.9458312988281
2012	86.8779525756836
2013	87.9009628295898
2014	87.5648727416992
2015	87.7183990478516
2016	87.0872116088867
2017	87.141731262207
2018	87.8350601196289
2019	89.2547302246094
2020	89.9208984375
2021	90.4345932006836
2022	91.0180130004883