Year	% gross
1977	52.7212409973145
1978	54.6678886413574
1979	57.2465591430664
1980	59.118968963623
1981	62.1931610107422
1982	68.7875900268555
1983	71.9796905517578
1985	71.7413330078125
1986	65.3444519042969
1987	66.0267028808594
1988	66.5458297729492
1991	74.3273696899414
1992	75.1225204467773
1993	85.7826614379883
1994	85.9103012084961
1995	85.6343002319336
1996	81.8782272338867
1997	84.0767822265625
1999	93.9238128662109
2000	91.3749465942383
2001	88.5691986083984
2003	85.364990234375
2005	90.2885437011719
2007	83.4505996704102
2008	83.1619186401367
2009	83.7743225097656
2010	84.01513671875
2011	92.9690704345703
2012	97.4244537353516
2014	64.4100036621094