Year	% gross
1983	21.0515899658203
1984	22.7249794006348
1985	25.2882995605469
1986	27.6673107147217
1987	30.5009498596191
1988	31.7190704345703
1989	31.5522994995117
1990	31.5326309204102
1991	30.9309597015381
1992	31.7464294433594
1993	32.0884704589844
1994	31.5525207519531
1995	32.4424209594727
1996	33.4877510070801
1997	34.9159698486328
1998	44.8063812255859
1999	45.4827613830566
2000	45.8774490356445
2001	46.0227317810059
2002	44.0010185241699
2003	44.0176200866699
2004	44.7867393493652
2005	45.7202110290527
2006	47.7426910400391
2007	49.6810913085938
2008	51.9033393859863
2009	53.7181091308594
2010	56.9986114501953
2011	60.7773513793945
2012	65.2881698608398
2013	66.2723693847656
2014	68.8022766113281
2015	70.5964126586914
2016	72.9607086181641
2017	74.7425994873047
2018	76.8509368896484
2019	77.4153366088867
2020	78.0608978271484