Year	% gross
1971	2.81565999984741
1972	2.96679997444153
1973	2.95743989944458
1974	2.97574996948242
1975	3.53015995025635
1976	3.26887011528015
1977	4.23261976242065
1978	5.05645990371704
1979	8.45985984802246
1980	10.3217096328735
1981	7.62538003921509
1982	18.5985698699951
1983	20.8586406707764
1984	21.4022102355957
1985	19.8984203338623
1986	18.5268306732178
1988	15.0726003646851
1990	15.8925504684448
1993	20.2741203308105
1995	22.4037799835205
1996	23.777660369873
1997	26.7124691009521
1998	31.2122097015381
1999	37.3846588134766
2000	38.5435409545898
2001	39.5797080993652
2002	41.1306991577148
2003	42.8931503295898
2004	44.8772087097168
2005	48.1758003234863
2006	49.2483215332031
2007	53.8758010864258
2008	53.0112113952637
2009	52.8345794677734
2010	51.6800003051758
2011	52.5900001525879
2012	50.8530006408691
2013	50.3224601745605
2014	50.0349998474121
2016	49.8400001525879
2017	48.859001159668
2018	48.7029991149902
2019	49.1469993591309
2020	48.0149993896484
2021	49.6689987182617
2022	49.1360015869141
2023	48.7529983520508