Year	% gross
1972	78.8421936035156
1973	79.3878936767578
1974	82.9470825195312
1975	87.8230895996094
1976	100.706520080566
1977	100.972793579102
1978	100.285003662109
1979	100.013076782227
1980	99.8935089111328
1981	99.8353271484375
1982	100.375122070312
1983	99.8112182617188
1984	99.8012390136719
1985	99.9407730102539
1986	99.9228591918945
1987	100.121932983398
1988	100.241981506348
1989	99.9515533447266
1990	99.8820877075195
1991	99.6591262817383
1992	99.7241516113281
1993	99.8123931884766
1994	99.827278137207
1995	99.8662490844727
1996	99.9457473754883
1997	99.9259414672852
1998	99.7067184448242
1999	99.5014495849609
2000	99.4113235473633
2001	99.3975219726562
2002	99.3119583129883
2003	99.2937393188477
2004	99.4096832275391
2005	99.4090805053711
2006	99.5234680175781
2007	99.3760986328125
2008	99.3705062866211
2009	99.3830184936523
2010	99.3895797729492
2011	99.4017105102539
2012	99.3996124267578
2013	99.3833465576172
2014	99.391487121582
2015	99.3064193725586
2016	99.2614822387695
2017	99.2286682128906
2018	99.4124374389648
2019	99.275146484375
2020	99.6351470947266
2021	99.2127532958984
2022	98.4120712280273