Year	% gross
1970	0.353500008583069
1972	0.347460001707077
1976	1.25427997112274
1977	1.89416003227234
1979	1.87848997116089
1980	2.50956988334656
1981	2.23256993293762
1990	3.24873995780945
1991	3.41822004318237
1992	2.77735996246338
1993	3.89034008979797
1996	6.12355995178223
1999	4.30514001846313
2000	4.0692400932312
2002	4.68023014068604
2004	5.3834400177002
2005	4.67414999008179
2006	4.24477005004883
2011	6.62487983703613
2013	6.16067981719971