Year	% gross
1971	119.079032897949
1972	119.19979095459
1973	115.413269042969
1974	114.029006958008
1975	109.315208435059
1976	108.052589416504
1977	111.82772064209
1978	110.042503356934
1979	110.369537353516
1980	107.010139465332
1981	104.496002197266
1982	102.739898681641
1983	99.2444076538086
1984	101.114463806152
1985	101.270896911621
1986	103.496673583984
1987	104.753196716309
1988	105.151153564453
1989	106.952842712402
1990	107.542709350586
1991	108.232986450195
1992	105.339813232422
1993	105.244728088379
1994	104.995079040527
1995	102.61402130127
1996	104.168701171875
1997	104.156272888184
1998	104.373481750488
1999	104.731651306152
2000	106.150016784668
2001	105.454071044922
2002	104.741981506348
2003	103.959106445312
2004	105.12281036377
2005	101.990226745605
2006	102.756652832031
2007	102.814117431641
2008	103.227340698242
2009	97.6392593383789
2010	101.97582244873
2011	100.81127166748
2012	101.154487609863
2013	102.062683105469
2014	101.83438873291
2015	101.623397827148
2016	101.077301025391
2017	99.3054428100586
2018	98.8802185058594
2019	97.5330123901367
2020	96.325439453125
2021	95.1580963134766
2022	93.5518798828125