Year	% gross
1971	1.57054996490479
1972	1.6828099489212
1973	1.83483004570007
1976	3.48680996894836
1979	2.94440007209778
1980	2.76320004463196
1981	2.70765995979309
1982	2.9904100894928
1983	2.22671008110046
1984	2.30355000495911
1985	2.53132009506226
1986	2.6038498878479
1988	4.30068016052246
1990	5.64981985092163
1994	9.58335018157959
1995	8.96592044830322
1996	10.0401296615601
1997	11.8985996246338
2003	7.25076007843018
2004	10.431209564209
2005	10.9353199005127
2006	10.9832801818848
2007	11.0615100860596
2008	10.5220699310303
2009	9.95514011383057
2010	10.8050403594971
2011	11.1490097045898
2012	11.6349601745605