Year	% gross
1981	57.2793502807617
1986	67.7688598632813
1990	53.7499198913574
1991	45.1975898742676
1992	37.0692710876465
1993	27.5395698547363
1994	31.1749401092529
1995	38.4027900695801
1996	44.4669418334961
1997	48.0879211425781
1998	50.6736717224121
1999	59.5080108642578
2000	65.2992935180664
2001	66.4910430908203
2002	69.4373168945313
2003	82.1463012695313
2004	82.5569610595703
2005	83.9395904541016
2006	84.5896835327148
2007	86.2345581054688
2008	87.3448867797852
2009	88.2727737426758
2010	87.0325927734375
2011	90.1781768798828
2012	90.8769989013672
2013	92.6111297607422
2014	93.7107620239258
2015	94.213737487793
2016	95.348030090332
2017	95.9020385742188
2018	95.4110336303711
2019	94.7286834716797
2020	94.7554626464844