Year	% gross
1983	1.96875
1984	2.25488996505737
1986	3.17178010940552
1992	8.64542007446289
2010	9.06791019439697
2011	9.39517974853516
2012	9.5573902130127
2013	9.04271984100342
2015	11.9256801605225
2016	9.02400016784668
2017	9.17000007629395
2018	8.78699970245361
2019	10.2049999237061
2020	9.92199993133545