Year	% gross
1970	78.0644073486328
1971	78.7634582519531
1972	81.9438629150391
1973	85.2782363891602
1974	87.3911514282227
1975	88.1076965332031
1976	88.2838516235352
1977	89.0764389038086
1978	89.2556381225586
1979	90.2091903686523
1980	92.290901184082
1981	95.0325317382812
1982	96.1295928955078
1983	95.9020614624023
1984	95.8586273193359
1985	95.809928894043
1986	93.8727798461914
1987	93.7063217163086
1988	93.2514038085938
1989	92.279052734375
1990	94.3189010620117
1991	94.4362182617188
1992	95.1341934204102
1993	95.3090209960938
1994	96.0258331298828
1995	98.8150482177734
1996	97.0958404541016
1997	97.1083908081055
1998	97.0974807739258
1999	98.2588882446289
2000	98.094367980957
2001	97.114013671875
2002	96.8140411376953
2003	98.2040634155273
2004	104.61279296875
2005	108.24292755127
2006	114.299507141113
2007	117.823600769043
2009	119.770660400391
2010	125.429336547852
2011	124.78254699707
2012	124.537452697754
2013	124.505271911621
2014	125.207389831543
2015	125.180328369141
2016	123.177932739258
2017	121.964256286621
2018	121.543380737305
2019	120.863037109375