Year	% gross
1971	3.793869972229
1973	4.06067991256714
1974	4.32286977767944
1975	4.82105016708374
1976	5.47091007232666
1977	6.18768978118896
1978	6.69083976745605
1981	9.62075042724609
1991	44.9532089233398
1992	47.3193511962891
1993	52.6455917358398
2012	87
2014	71.2672805786133
2015	63.2428665161133
2016	72.2475357055664
2017	74.5993728637695
2018	78.8421401977539
2019	78.5787658691406
2020	75.2993850708008
2021	74.1728820800781
2022	74.3641738891602