Year	% gross
1983	15.0156002044678
1984	14.9127902984619
1985	14.8430404663086
1986	15.1447200775146
1987	15.2300300598145
1988	15.4165496826172
1989	15.4336996078491
1990	15.4537296295166
1991	15.5843496322632
1992	15.6385402679443
1993	15.6329202651978
1994	15.446629524231
1995	15.5607595443726
1996	15.8912897109985
1997	15.3058700561523
1998	15.682689666748
1999	13.4915704727173
2000	14.7556800842285
2001	15.2762002944946
2002	16.9016399383545
2003	18.1310806274414
2004	19.349889755249
2005	19.8549499511719
2006	21.1505794525146
2007	19.7323398590088
2008	19.7363300323486
2009	21.3594093322754
2010	21.0652503967285
2011	22.7898197174072
2012	26.2192802429199
2013	28.5999393463135
2014	23.6168403625488
2015	25.5491409301758
2016	26.7071990966797
2017	27.2630596160889
2018	27.2432308197021
2019	27.5333404541016
2020	28.2126598358154