Year	% gross
1981	96.722053527832
1982	97.9983367919922
1983	98.3631820678711
1984	97.4633026123047
1985	96.8500137329102
1986	96.1631164550781
1987	96.4939727783203
1988	96.8740692138672
1989	97.3927917480469
1990	97.6604309082031
1991	79.2544784545898
1992	100.207298278809
1993	96.8579864501953
1994	97.3173904418945
1995	98.8431015014648
1996	99.1176605224609
1997	99.5849990844727
1998	99.4003524780273
1999	99.357421875
2000	99.6168975830078
2001	102.646118164062
2002	105.333992004395
2003	110.09203338623
2004	96.6843719482422
2005	98.2098770141602
2006	100.249351501465
2007	96.4375076293945
2008	97.1056976318359
2009	97.7083587646484
2010	98.0614013671875
2011	97.9861526489258
2012	98.2142868041992
2013	98.6006774902344
2014	98.5871734619141
2015	98.381591796875
2016	97.9815826416016
2017	98.1781311035156
2018	99.4630966186523
2019	99.8418197631836
2020	100.231536865234
2021	99.7762680053711
2022	100.639137268066