Year	% gross
1981	109.083457946777
1986	113.668533325195
1989	109.737808227539
1990	111.44066619873
1991	112.337409973145
1992	104.678657531738
1993	104.232162475586
1994	103.846336364746
1995	102.28002166748
1996	98.6611404418945
1997	100.836631774902
1998	100.955711364746
1999	101.578857421875
2000	101.583267211914
2001	100.479988098145
2002	99.3772735595703
2003	99.0644683837891
2004	97.89208984375
2005	97.5954132080078
2006	96.6216278076172
2007	95.5791625976562
2008	95.2109680175781
2009	94.3094329833984
2010	94.1579971313477
2011	93.7379989624023
2012	94.2050018310547
2013	95.1251602172852
2014	96.3580017089844
2015	97.734001159668
2016	99.1835632324219
2017	100.324890136719
2018	100.870918273926
2019	100.189613342285
2020	99.2119979858398
2021	97.8109970092773
2022	93.8300018310547
2023	94.1750030517578