Year	% gross
1971	74.0838088989258
1972	77.1519012451172
1973	79.7126693725586
1974	82.4197235107422
1975	84.2612686157227
1976	88.1070022583008
1977	90.1174697875977
1978	91.6689834594727
1979	91.7932281494141
1980	93.1177978515625
1981	93.9201965332031
1982	95.2018127441406
1983	97.6003799438477
1984	100.350791931152
1985	100.463966369629
1986	115.791160583496
1987	117.785202026367
1988	119.4697265625
1989	121.299491882324
1990	123.708297729492
1991	124.910690307617
1992	125.090721130371
1993	124.985687255859
1994	140.053497314453
1995	137.791168212891
1996	135.273834228516
1997	129.239303588867
1998	126.799468994141
1999	123.172210693359
2000	123.295211791992
2001	123.443389892578
2002	120.754852294922
2003	119.909339904785
2004	116.909530639648
2005	117.553810119629
2006	118.427619934082
2007	119.842338562012
2008	121.511627197266
2009	122.74600982666
2010	124.569526672363
2011	129.868103027344
2012	111.448249816895
2015	114.137916564941
2016	112.994277954102
2017	115.225227355957
2018	114.50032043457
2019	114.804168701172
2020	115.440399169922
2021	115.116073608398