Year	% gross
1975	65.4302062988281
1976	66.107048034668
1977	65.5316619873047
1978	62.1524810791016
1979	58.1048698425293
1980	53.002628326416
1981	50.7552604675293
1982	47.7361793518066
1983	45.6994285583496
1984	45.5052680969238
1985	46.4777984619141
1986	47.8482704162598
1987	49.7350616455078
1988	51.571891784668
1989	52.470531463623
1990	53.5079002380371
1991	55.507209777832
1992	57.4701499938965
1993	59.0670013427734
1994	58.9838409423828
1995	60.0506210327148
1996	62.2817192077637
1997	63.9604415893555
1998	65.6454925537109
1999	66.9247589111328
2000	67.5914306640625
2001	69.3865737915039
2002	72.7232666015625
2003	72.5482864379883
2004	74.264778137207
2005	76.1563568115234
2006	76.3974609375
2007	80.1139678955078
2008	82.8692092895508
2009	86.3383483886719
2010	88.9469985961914
2011	89.9508285522461
2012	89.7345504760742
2013	91.5202178955078
2014	90.4292831420898
2015	89.9269790649414
2016	89.4956283569336
2017	89.6543273925781
2018	90.4009170532227
2019	91.3509902954102
2020	92.1116485595703
2021	92.853759765625
2022	93.5213012695312