Year	% gross
1973	20.644739151001
1976	33.9285697937012
1977	30.4478302001953
1978	29.1150302886963
1979	24.5145206451416
1980	30.7167892456055
1981	34.5022583007813
1982	46.9972381591797
1983	52.455638885498
1984	47.6758804321289
1985	46.6047515869141
1986	48.6827507019043
1987	50.1594314575195
1988	51.9775085449219
1989	55.064380645752
1990	56.0203514099121
1991	53.7590408325195
1992	54.6112213134766
1993	56.1428604125977
1994	58.8157997131348
1995	59.4210586547852
1996	58.751838684082
1997	56.2083015441895
1998	57.6489295959473
1999	60.2826805114746
2000	59.3093795776367
2001	59.601879119873
2002	65.3639678955078
2003	71.0993499755859
2004	75.2928009033203
2005	78.4205017089844
2006	79.8563613891602
2007	85.0657501220703
2009	86.3016967773438
2010	86.2510833740234
2011	84.4375686645508
2012	81.1503829956055
2013	82.3639602661133
2014	88.5204925537109
2015	80.4056091308594
2019	98.2778625488281
2020	94.2661819458008