Year	% gross
1970	5.37631988525391
1971	5.80312013626099
1972	6.21008014678955
1973	8.23297023773193
1974	9.45466995239258
1975	11.8130903244019
1976	12.9346599578857
1977	12.7273502349854
1979	13.0561199188232
1980	14.0909204483032
1981	15.3171796798706
1982	16.8551006317139
1985	19.9420299530029
1991	27.8942909240723
1993	31.0191993713379
1995	33.0426292419434
1998	54.8435211181641
1999	54.1643486022949
2000	57.1992416381836
2001	60.5474700927734
2002	58.6047096252441
2003	58.4231605529785
2004	61.6269111633301
2005	63.6922988891602
2006	64.7615737915039
2007	68.7672576904297
2008	72.8469772338867
2009	76.927116394043
2010	78.6395263671875
2011	76.3974685668945
2012	76.8744735717773
2013	83.4328231811523
2014	86.54443359375
2015	88.8061218261719
2016	93.7326812744141
2017	98.3873291015625
2018	103.555862426758
2019	105.631217956543
2020	102.513076782227
2021	95.5862503051758