Year	% gross
1970	11.055700302124
1971	13.1441097259521
1975	14.7285299301147
1986	22.0032997131348
1990	17.5219802856445
1991	19.5988292694092
1992	19.6968994140625
1993	21.2969703674316
1994	21.5664596557617
1999	28.5735206604004
2000	22.4832000732422
2001	26.5230598449707
2002	34.4362907409668
2005	33.5065002441406
2006	38.4993209838867
2007	39.0301895141602
2010	51.8138618469238
2011	49.738941192627
2012	49.3702697753906