Year	% gross
1991	58.2419204711914
1992	48.6287498474121
1993	40.0580406188965
1994	30.0978393554688
1995	33.8678398132324
1996	38.1547698974609
1997	41.338981628418
1998	46.7150802612305
1999	53.035099029541
2000	57.6626205444336
2001	57.2011985778809
2002	59.9282112121582
2003	62.71875
2004	63.8980102539063
2005	66.3356781005859
2006	72.0221786499023
2007	73.8425674438477
2008	76.883659362793
2009	80.3791198730469
2010	79.7201232910156
2011	80.2016906738281
2012	80.9413223266602
2013	82.1867980957031
2014	84.8849716186523
2015	86.3557205200195
2016	87.3729629516602
2017	88.6322479248047
2018	88.6925506591797
2019	89.0663223266602
2020	89.4568176269531