Year	% gross
1970	84.4806289672852
1971	85.1737518310547
1972	85.7594833374023
1973	85.7970123291016
1974	84.6324920654297
1975	86.7779998779297
1976	89.5426025390625
1977	92.255241394043
1978	100.636573791504
1981	110.904006958008
1982	115.662269592285
1983	118.065292358398
1984	121.104263305664
1985	122.752113342285
1986	121.004371643066
1987	119.35285949707
1988	118.194862365723
1989	117.287788391113
1990	115.115783691406
1991	113.279418945312
1992	111.828437805176
1993	111.859848022461
1994	113.352272033691
1995	113.292778015137
1996	112.901176452637
1997	112.798477172852
1998	113.790908813477
1999	113.929649353027
2000	110.784622192383
2001	111.364921569824
2002	112.076751708984
2003	112.111717224121
2004	111.60619354248
2005	110.959060668945
2006	109.592582702637
2007	112.228553771973
2008	110.809883117676
2009	112.17903137207
2010	113.969429016113
2011	115.483627319336
2012	115.963607788086
2013	112.899391174316
2014	111.074516296387
2015	109.361976623535
2016	107.204238891602
2017	105.679740905762
2018	104.857139587402
2019	102.59700012207
2020	102.438003540039
2021	101.990997314453
2022	100.644996643066