Year	% gross
1981	57.4893608093262
1986	67.7927169799805
1990	54.1037712097168
1991	45.4772109985352
1992	37.1676788330078
1993	27.5332908630371
1994	31.0577392578125
1995	37.4216117858887
1996	43.6530303955078
1997	47.0140419006348
1998	49.7237815856934
1999	58.1716499328613
2000	63.932071685791
2001	65.2011032104492
2002	67.8717193603516
2003	80.2272186279297
2004	80.8455429077148
2005	82.6264801025391
2006	83.4565811157227
2007	84.8305130004883
2008	86.4679336547852
2009	87.4521179199219
2010	85.8798599243164
2011	89.0187072753906
2012	90.3002319335938
2013	92.0773773193359
2014	93.488166809082
2015	93.9982223510742
2016	94.9494171142578
2017	95.6182479858398
2018	95.0422515869141
2019	94.6752395629883
2020	94.6291198730469