Year	% gross
1973	19.0564708709717
1976	16.9491195678711
1977	17.295389175415
1979	17.6225605010986
1980	19.6155605316162
1981	17.3242301940918
1983	20.7030200958252
1984	20.7985191345215
1985	20.1269092559814
1986	19.5953998565674
1987	19.9799995422363
1988	19.9463500976562
1989	19.8626194000244
1990	20.4544296264648
1998	43.6955299377441
1999	46.9789085388184
2000	48.7191314697266
2001	50.3141403198242
2002	51.418098449707
2003	51.257080078125
2004	47.8641395568848
2005	46.6028785705566
2006	47.0837898254395
2007	47.9007186889648
2008	45.9643898010254
2009	49.7341003417969
2010	51.1860008239746
2011	51.5029983520508
2012	53.6534004211426
2013	57.9589996337891
2015	62.0312309265137
2016	66.9229965209961
2017	64.8560028076172
2018	67.4209976196289
2019	67.2210006713867
2020	69.0139999389648
2021	70.2929992675781
2022	71.8219985961914