Year	% gross
1970	0.0544500015676022
1971	0.0618599988520145
1972	0.0681999996304512
1973	0.0736600011587143
1974	0.0762299969792366
1975	0.0577399991452694
1976	0.0310100000351667
1977	0.0300900004804134
1978	0.0875200033187866
1979	0.0821399986743927
1982	0.0873600021004677
1983	0.0846799984574318
1984	0.0784000009298325
1985	0.0739599987864494
1986	0.0708699971437454
1987	0.0771600008010864
1991	0.10343000292778
1992	0.108790002763271
1993	0.114840000867844
1994	0.138779997825623
1995	0.152799993753433
1996	0.185430005192757
1997	0.240470007061958
1998	0.212599992752075
1999	0.252840012311935
2000	0.297239989042282
2001	0.313870012760162
2002	0.342339992523193
2003	0.537540018558502
2004	0.685249984264374
2005	0.891330003738403
2007	0.896910011768341
2010	1.79656994342804
2012	2.62964010238647
2013	2.43029999732971
2015	2.70402002334595
2016	2.74731993675232
2019	2.35119009017944
2020	6.73899984359741
2021	3.16899991035461
2022	4.88399982452393