Year	% gross
1986	30.5764694213867
1989	32.9592590332031
1990	34.0818710327148
1991	33.6644592285156
1992	30.6843700408936
1993	23.2756805419922
1994	13.9591598510742
1995	9.28252029418945
1999	10.1849899291992
2000	9.92434024810791
2001	10.3969898223877
2002	10.5665903091431
2003	11.1420402526855
2004	12.0084600448608
2005	13.4114103317261
2006	14.9052696228027
2007	16.3204002380371
2008	17.4928607940674
2009	18.4377899169922
2010	18.7960891723633
2011	20.3070507049561
2012	24.0667896270752
2013	26.3463897705078
2014	25.4768295288086
2015	27.8913097381592
2016	30.5336608886719
2017	38.7033996582031
2018	39.8179092407227
2019	39.9063911437988
2020	40.7212295532227
2021	38.5439682006836