Year	% gross
1979	1.31965005397797
1980	5.32339000701904
1982	7.95327997207642
1983	4.39049005508423
1984	4.48224020004272
2009	54.3776893615723
2015	92.880126953125
2016	93.2219009399414
2017	95.3775787353516
2018	96.8923263549805