Year	% gross
1978	0.0773800015449524
1988	0.759859979152679
1989	0.796750009059906
1990	0.696020007133484
1991	0.769110023975372
1992	0.853089988231659
1993	1.02950000762939
1994	1.18138003349304
1995	1.15065002441406
1996	1.27406001091003
1997	1.2093700170517
1998	1.25076997280121
1999	1.43224000930786
2001	1.14645004272461
2002	1.28012001514435
2003	1.37414002418518
2004	1.53776001930237
2005	1.46797001361847
2006	1.73745000362396
2008	2.22639989852905
2009	2.24836993217468
2010	2.54443001747131
2011	2.80040001869202
2012	3.0867600440979
2013	3.32032990455627
2015	3.68611001968384
2016	3.51304006576538
2017	3.25418996810913
2018	3.40883994102478
2019	4.23616981506348
2020	4.34497022628784