Year	% gross
1975	100.766761779785
1976	100.197486877441
1978	104.451927185059
1979	102.746688842773
1980	100.651466369629
1981	100.981452941895
1982	99.9503707885742
1983	100.09245300293
1984	98.8396530151367
1985	98.6564483642578
1986	98.4736862182617
1987	99.1569137573242
1991	100.109420776367
1992	91.7682571411133
1993	79.9559783935547
1994	79.9256820678711
1995	85.9038619995117
1996	92.0779571533203
1997	91.9254608154297
1998	94.4672698974609
1999	96.0967102050781
2000	97.7968368530273
2001	100.464309692383
2002	101.89225769043
2003	106.258247375488
2004	109.839073181152
2005	98.0291137695312
2006	99.817512512207
2007	97.0225982666016
2008	98.564453125
2009	106.93229675293
2010	117.964683532715
2011	116.858657836914
2012	113.491088867188
2013	107.001823425293
2014	100.21556854248
2015	98.1019973754883
2016	97.7699966430664
2017	96.3949966430664
2018	96.7470016479492
2019	96.2160034179688
2020	95.3560028076172
2021	95.2689971923828
2022	95.9420013427734