Year	% gross
1970	43.1883201599121
1971	44.8060188293457
1972	46.8385810852051
1973	48.4117813110352
1974	48.6011085510254
1975	49.1497802734375
1976	49.7631301879883
1977	55.6843681335449
1978	63.8839302062988
1979	71.0601272583008
1980	74.2680816650391
1981	78.3523864746094
1982	83.2249221801758
1983	83.3649063110352
1984	82.3899688720703
1985	79.7440872192383
1986	73.3366317749023
1987	71.5825576782227
1988	69.7332077026367
1989	69.0004272460938
1990	70.3363265991211
1991	70.5385208129883
1992	72.4562835693359
1993	74.9255905151367
1994	75.5607070922852
1995	74.3431777954102
1996	69.7618026733398
1997	73.5992126464844
1998	76.5982437133789
1999	79.5409774780273
2000	82.6959915161133
2001	83.1681594848633
2002	84.8815994262695
2003	85.6458892822266
2004	87.6110076904297
2005	88.5914916992188
2006	89.3770370483398
2007	86.6820831298828
2008	84.2991790771484
2009	85.9604415893555
2010	86.5904922485352
2011	89.9065933227539
2012	91.4048690795898
2013	92.4282608032227
2014	90.8611679077148
2015	89.9039306640625
2016	88.5486068725586
2017	88.6974182128906
2018	88.60693359375
2019	89.4808883666992
2020	89.9406890869141
2021	89.840690612793
2022	89.9530410766602