Year	% gross
1971	39.9621200561523
1972	42.5631408691406
1973	45.2079582214355
1974	44.225830078125
1975	44.8962707519531
1976	45.5987281799316
1977	43.9117202758789
1978	41.185188293457
1979	40.6791915893555
1980	40.9503784179688
1981	41.8489799499512
1982	44.452449798584
1983	42.9926986694336
1984	43.0473403930664
1985	44.894889831543
1986	46.2790718078613
1987	47.448169708252
1988	48.1085510253906
1989	47.2518501281738
1990	48.7946815490723
1991	52.3364486694336
1992	50.7555618286133
1993	51.7050704956055
1994	51.3538703918457
1996	54.4159507751465
1997	56.1165008544922
2000	49.2416610717773
2008	95.2838363647461
2009	96.2834930419922
2010	94.9409790039062
2011	94.0298461914062
2012	92.9317321777344
2013	94.0419998168945
2014	94.4710006713867
2015	94.7529983520508
2018	56.9326095581055
2019	57.7995491027832
2020	60.7333793640137
2021	58.4269714355469
2022	58.6972618103027