Year	% gross
1970	0.806509971618652
1971	0.97723001241684
1972	1.01449000835419
1973	1.17183995246887
1974	1.09765005111694
1975	1.19384002685547
1976	1.34808003902435
1977	1.4954400062561
1978	1.90880000591278
1979	2.0331699848175
1982	2.19055008888245
1986	2.37948989868164
1987	1.88179004192352
1990	2.46528005599976
2003	1.38107001781464
2004	1.38966000080109
2009	4.02480983734131
2011	3.75560998916626
2014	8.31087017059326
2018	9.96378993988037
2020	10.8584403991699