Year	% gross
1971	0
1972	0
1973	0.0868799984455109
1974	0.164660006761551
1975	0.303950011730194
1976	0.430990010499954
1977	0.913079977035522
1978	1.77664995193481
1979	2.85251998901367
1980	4.30761003494263
1981	6.25713014602661
1982	8.47531032562256
1983	10.7212600708008
1984	13.2956600189209
1985	16.8266696929932
1986	19.4831600189209
1987	22.3749504089355
1988	25.4021301269531
1989	29.4430294036865
1990	34.6881294250488
1991	41.463550567627
1992	47.4797401428223
1993	53.7850914001465
1994	59.5081481933594
1995	62.7459487915039
1996	65.2893524169922
1997	66.5747680664062
1998	68.8296890258789
1999	71.6840515136719
2000	77.7238235473633
2001	79.8200912475586
2002	80.8610305786133
2003	82.2718811035156
2005	85.8983535766602
2006	88.3451995849609
2007	90.8690490722656
2008	92.0375289916992
2009	96.9309463500977
2011	115.394187927246
2012	111.024269104004
2013	110.624458312988
2015	101.900146484375
2016	100.944351196289
2017	101.340522766113
2018	103.182197570801
2019	101.329177856445
2020	93.6077117919922
2021	93.2710494995117
2022	91.2033615112305