Year	% gross
1974	2.2548201084137
1975	2.40794992446899
1976	5.67296981811523
1977	12.9770202636719
1978	8.59494018554688
1979	7.85397005081177
1980	9.10389995574951
1981	12.4063196182251
1982	11.9947500228882
1983	13.4005098342896
1984	14.4916801452637
1985	16.8903503417969
1986	19.4787902832031
1987	21.0229301452637
1988	22.4330291748047
1989	21.9203300476074
1990	20.9172401428223
1991	21.4807300567627
1992	22.6873893737793
1993	23.4931907653809
1994	23.6288604736328
1995	24.5862007141113
1996	25.9679508209229
1997	27.4684391021729
1998	40.8107109069824
1999	44.9083213806152
2000	44.8582191467285
2001	44.702449798584
2002	40.0532989501953
2003	39.1993598937988
2006	42.5563697814941
2007	44.7893218994141
2008	47.0922698974609
2009	50.1515808105469
2010	53.6667785644531
2011	59.9223289489746
2012	68.350700378418
2013	72.7794570922852
2014	76.0712738037109
2015	78.6560516357422
2016	82.3611831665039
2017	84.7978210449219
2018	88.0934066772461
2019	89.1185531616211
2020	90.4898223876953
2021	93.0686721801758