Year	% gross
1971	2.70654010772705
1972	2.74363994598389
1973	3.03035998344421
1974	3.70362997055054
1975	4.57119989395142
1976	5.35801982879639
1977	6.0551700592041
1978	7.58858013153076
1979	7.32480001449585
1980	7.38254976272583
1981	7.73763990402222
1982	7.99458980560303
1983	8.43165016174316
1984	8.05848979949951
1985	8.72309017181396
1986	8.81472969055176
1987	8.60892963409424
1991	9.61398029327393
1992	10.7325201034546
1993	11.1433696746826
1994	11.0991897583008
1995	11.3355703353882
1996	11.2278003692627
1997	11.8011903762817
1998	10.9341802597046
1999	12.8079700469971
2000	13.7102603912354
2001	15.677619934082
2002	16.7945594787598
2003	20.0106601715088
2004	22.7808494567871
2005	24.9171199798584
2006	23.7013301849365
2007	24.7870597839355
2008	24.6578998565674
2009	25.0135498046875
2011	22.1884708404541
2012	29.2245693206787
2013	36.5778007507324
2014	43.7586212158203
2015	49.1590690612793
2016	57.8636016845703
2017	67.4906311035156
2018	69.7505264282227
2019	75.0917205810547
2020	69.3948516845703
2021	72.3995666503906
2022	69.5368881225586