Year	% gross
1992	98.2864532470703
1993	101.878997802734
1994	102.446449279785
1995	102.056999206543
1996	102.330238342285
1997	102.794570922852
1998	97.8488235473633
1999	98.224983215332
2000	98.5004425048828
2001	98.947509765625
2002	100.203979492188
2003	100.351638793945
2004	100.461128234863
2005	100.427360534668
2006	101.229377746582
2007	100.871421813965
2008	101.961143493652
2009	100.680168151855
2010	102.300201416016
2011	102.559692382812
2012	101.587738037109
2013	101.26392364502
2014	100.556137084961
2015	99.435302734375
2016	98.584228515625
2017	98.1771011352539
2018	97.601936340332
2019	97.6850433349609
2020	97.8931121826172
2021	98.0514907836914