Year	% gross
1981	109.614562988281
1986	114.098930358887
1989	109.033279418945
1990	110.381950378418
1991	111.566688537598
1992	103.652961730957
1993	102.587272644043
1994	103.030227661133
1995	102.7822265625
1996	99.0721130371094
1997	99.8410491943359
1998	100.141532897949
1999	100.585578918457
2000	100.79638671875
2001	100.016357421875
2002	99.4098892211914
2003	98.5799789428711
2004	97.9665069580078
2005	97.81298828125
2006	96.9056625366211
2007	96.1197280883789
2008	95.571662902832
2009	94.694938659668
2010	94.7379989624023
2011	94.4830017089844
2012	94.8720016479492
2013	95.7249984741211
2014	96.9020004272461
2015	98.2379989624023
2016	99.6600036621094
2017	100.808502197266
2018	101.29084777832
2019	100.332000732422
2020	99.4990005493164
2021	98.0319976806641
2022	94.1940002441406
2023	94.3349990844727