Year	% gross
1970	3.60798001289368
1972	3.93067002296448
1974	4.90111017227173
1976	3.84976005554199
1977	4.29367017745972
1978	3.57704997062683
1979	5.30776977539062
1980	5.40142011642456
1981	5.39535999298096
1982	6.07752990722656
1983	7.94805002212524
1984	8.72603988647461
1985	8.76362037658691
1986	8.49549007415771
1987	7.38641977310181
1988	6.47175979614258
1989	6.31861019134521
1990	7.16541004180908
1999	7.40921020507812
2000	7.39368009567261
2001	8.52091026306152
2002	8.35402965545654
2003	8.4282398223877
2004	7.83774995803833
2005	8.35762023925781
2006	9.39468955993652
2007	10.1895799636841
2008	11.4001903533936
2009	13.558159828186
2011	16.0380001068115
2012	15.8809995651245
2013	15.798999786377
2014	15.7510004043579
2015	18.2390003204346
2016	20.5709991455078
2017	21.8470001220703
2018	23.1809997558594
2019	26.6590003967285
2020	25.0170001983643
2021	25.6730003356934
2022	24.7830009460449