Year	% gross
1973	8.21986961364746
1974	10.3320302963257
1975	10.3201999664307
1978	10.7079296112061
1982	12.9968204498291
1983	14.303879737854
1984	15.0956201553345
1985	16.394100189209
1986	16.941219329834
1994	19.8828792572021
1995	20.6475505828857
1996	19.9998607635498
1998	18.6692008972168
1999	18.7507095336914
2000	18.4870090484619
2001	17.8313007354736
2002	18.5736904144287
2003	19.561580657959
2004	20.3803691864014
2005	21.0559501647949
2006	21.8695297241211
2007	23.1974906921387
2008	23.8794498443604
2009	24.1258907318115
2010	24.3486404418945
2011	25.3364391326904
2012	26.0209102630615
2013	25.9573802947998
2014	25.1010608673096
2015	24.8332805633545
2016	24.5146408081055
2017	24.9926204681396
2018	25.37672996521
2019	25.5405292510986
2020	27.7245597839355