Year	% gross
1971	24.3421096801758
1972	20.4059200286865
1973	20.5670108795166
1974	20.1189308166504
1975	33.9622611999512
1976	31.9169502258301
1983	58.5331497192383
2002	74.7959671020508
2003	73.8847579956055
2004	73.8656997680664
2005	81.9946975708008
2006	81.6985092163086
2007	81.1003799438477
2008	81.5
2009	83.5559310913086
2010	86.8791427612305
2011	91.3538589477539
2012	90.750732421875
2013	89.5570907592773
2014	91.4867630004883
2015	93.0392608642578
2016	93.5188980102539
2017	94.1632690429688
2018	93.7273788452148
2019	95.8849411010742
2020	96.2115173339844
2021	96.8138198852539
2022	97.8302230834961