Year	% gross
1974	4.52481985092163
1975	4.93003988265991
1976	6.38436985015869
1977	7.61220979690552
1978	8.5503101348877
1980	8.94384956359863
1988	12.1871204376221
1989	11.8788795471191
1990	10.4842700958252
1991	10.1019802093506
1992	10.4923896789551
1993	9.80844974517822
1994	10.7854700088501
1999	10.5278902053833
2000	10.8149404525757
2003	12.6136198043823
2004	12.6987495422363
2008	13.6807403564453
2010	17.6972007751465
2012	15.8171501159668
2013	16.2641296386719
2014	16.5841197967529
2015	17.0921802520752
2016	17.5783290863037
2017	20.7034893035889
2018	22.1506900787354
2019	21.0295906066895