Year	% gross
1971	0.016950000077486
1972	0.0217799991369247
1973	0.033610001206398
1974	0.0860200002789497
1975	0.0512100011110306
1976	0.0637200027704239
1979	0.153229996562004
1980	0.186749994754791
1981	0.22104999423027
1982	0.244660004973412
1984	0.302850008010864
1985	0.305599987506866
1986	0.313650012016296
1987	0.340620011091232
1988	0.367220014333725
1989	0.391770005226135
1990	0.409429997205734
1991	0.409260004758835
1992	0.423429995775223
1993	0.446949988603592
1998	0.518790006637573
1999	0.559069991111755
2000	0.582920014858246
2001	0.577340006828308
2002	0.999840021133423
2004	1.18885004520416
2005	1.20369005203247
2006	1.34657001495361
2010	2.19966006278992
2012	1.89330995082855
2013	2.48703002929688
2014	2.83312010765076
2015	2.68299007415771
2016	2.70559000968933
2017	3.08043003082275
2018	3.57507991790771
2021	5.49599981307983
2022	5.66300010681152