Year	% gross
1971	0.611410021781921
1972	0.76691997051239
1973	0.929180026054382
1976	2.43907999992371
1979	2.61598992347717
1980	2.2952299118042
1981	2.33489990234375
1982	2.65128993988037
1983	1.81802999973297
1984	2.18839001655579
1985	2.45451998710632
1986	2.46424007415771
1988	3.72457003593445
1990	4.75104999542236
1994	8.5927095413208
1995	8.49962043762207
1996	9.38136005401611
1997	11.8845100402832
2004	13.6544704437256
2005	14.8115797042847
2006	15.1029500961304
2007	15.0612096786499
2008	12.3247499465942
2009	13.3507900238037
2010	15.244270324707
2011	15.4264802932739
2012	15.4976396560669