Year	% gross
1971	47.6868782043457
1981	52.0651817321777
1986	65.704460144043
1991	56.8003807067871
1992	53.9665489196777
1993	50.4939498901367
2001	68.2121963500977
2002	74.5670394897461
2003	77.8778381347656
2004	80.1631469726562
2005	82.7525482177734
2006	83.7138900756836
2007	86.5100173950195
2008	88.3835983276367
2009	88.9261474609375
2011	91.2164306640625
2012	89.6232833862305
2013	90.8059463500977
2014	91.5146331787109
2015	93.2779006958008
2016	92.2695083618164
2017	89.9991836547852
2018	90.6679611206055
2019	89.9702072143555
2020	63.1741485595703
2021	60.8347282409668
2022	58.9166412353516