Year	% gross
1991	58.3988609313965
1992	48.6640701293945
1993	40.1361808776855
1994	31.1584796905518
1995	33.8365783691406
1996	36.7279396057129
1997	39.585319519043
1998	45.0274810791016
1999	51.5634994506836
2000	55.4346084594727
2001	55.2777481079102
2002	57.4636688232422
2003	61.0703315734863
2004	61.7426490783691
2005	64.4943008422852
2006	70.3794021606445
2007	72.4490509033203
2008	76.1721725463867
2009	78.4324111938477
2010	77.8544921875
2011	78.707649230957
2012	79.5337829589844
2013	81.9154891967773
2014	84.9512329101563
2015	86.2339324951172
2016	86.989616394043
2017	87.722053527832
2018	87.9699401855469
2019	88.5860290527344
2020	88.8008575439453