Year	% gross
1971	22.9710102081299
1972	23.4939804077148
1973	18.9240493774414
1974	29.3689308166504
1975	37.6255187988281
1976	63.7850494384766
1983	63.139591217041
2002	78.6606674194336
2003	78.3585662841797
2004	78.7378616333008
2005	90.5542221069336
2006	91.1206130981445
2007	89.2249526977539
2008	89.3446502685547
2009	90.3164901733398
2010	93.5560913085938
2011	96.3733062744141
2012	93.9972076416016
2013	92.5420608520508
2014	92.2974166870117
2015	92.0105361938477
2016	94.9345016479492
2017	94.588737487793
2018	96.5914077758789
2019	95.4625625610352
2020	96.7429580688477
2021	97.8970031738281
2022	97.1141815185547