Year	% gross
1971	93.2768630981445
1972	94.9892501831055
1973	99.0712890625
1974	103.034088134766
1975	104.874740600586
1976	105.788299560547
1977	107.378227233887
1978	107.651351928711
1979	108.902526855469
1980	109.918937683105
1981	107.671508789062
1982	106.584747314453
1983	103.476432800293
1984	102.407112121582
1985	101.725326538086
1986	102.903923034668
1987	101.015327453613
1988	102.209671020508
1989	99.0986709594727
1990	97.5638580322266
1991	99.4081573486328
1992	101.963287353516
1993	101.938140869141
1994	100.094711303711
1995	97.9494018554688
1996	96.462890625
1998	93.6469421386719
1999	93.1974411010742
2000	92.8527908325195
2002	92.5189514160156
2003	92.1428985595703
2004	91.6969375610352
2005	90.8984527587891
2006	90.3533782958984
2007	83.3400726318359
2008	84.8336410522461
2010	85.6065063476562
2011	86.4114990234375
2012	86.6946487426758
2013	90.2820281982422
2014	87.5580368041992