Year	% gross
1983	100.048919677734
1984	95.5990219116211
1986	108.49609375
1987	109.44499206543
1988	104.172729492188
1989	103.623191833496
1998	85.5196228027344
1999	84.5747833251953
2000	84.3850936889648
2001	85.3600921630859
2002	88.8584136962891
2003	93.388557434082
2004	98.9676971435547
2005	99.0271682739258
2006	98.1521911621094
2007	96.416130065918
2008	97.0817108154297
2009	96.5598907470703
2010	95.2145004272461
2011	94.4249801635742
2012	95.4938812255859
2013	96.1741409301758
2014	98.6099014282227
2015	97.982292175293
2016	96.1892166137695
2017	95.5689697265625
2018	96.0918884277344
2019	95.2222137451172
2020	93.9571533203125