Year	% gross
1971	58.8191184997559
1972	58.5596809387207
1973	65.3837127685547
1974	66.2415771484375
1975	68.3352737426758
1976	69.6294708251953
1979	77.9232406616211
1980	81.2653503417969
1981	83.9591598510742
1983	84.376953125
1986	87.7868270874023
1990	88.5091705322266
1991	83.9984283447266
1992	75.8370590209961
1993	66.1689682006836
1994	64.7940826416016
1995	61.2136192321777
1996	61.6228485107422
1997	59.3523101806641
1998	60.0343208312988
1999	59.1378402709961
2000	63.0990791320801
2001	70.1913909912109
2002	75.116569519043
2003	82.4480209350586
2004	88.2544021606445
2005	91.6668701171875
2006	91.7878112792969
2009	99.4914703369141
2010	92.1322174072266
2018	91.1449966430664
2019	90.4673461914062
2020	95.9889984130859
2021	99.7959976196289
2022	97.629997253418