Year	% gross
1971	98.6915283203125
1972	98.5418472290039
1973	100.000038146973
1974	101.334777832031
1976	99.9521408081055
1977	98.8530807495117
1978	99.0500335693359
1979	100.276397705078
1980	100.681709289551
1981	102.022071838379
1982	102.11695098877
1983	102.627166748047
1984	102.932830810547
1985	104.448890686035
1986	106.389907836914
1988	115.886703491211
1990	116.287910461426
1991	120.090957641602
1992	114.028953552246
1993	112.510047912598
1994	112.167503356934
1997	107.052787780762
1998	112.999229431152
1999	112.78897857666
2000	112.915328979492
2001	119.877792358398
2002	127.055168151855
2003	99.2439193725586
2004	98.8630523681641
2005	109.224052429199
2006	103.984046936035
2007	102.665367126465
2008	101.713829040527
2009	100.661819458008
2010	100.067626953125
2011	98.9314575195312
2012	97.1419906616211
2013	96.314079284668
2014	95.472038269043
2015	87.8509902954102
2016	87.4092025756836
2017	88.2140884399414
2018	88.572883605957
2019	90.6809692382812
2020	91.1122131347656
2021	91.1486968994141
2022	92.7710037231445