Year	% gross
1986	66.7384490966797
1989	68.1297378540039
1990	69.2795486450195
1991	68.0471572875977
1992	66.0092163085938
1993	61.0670509338379
1994	59.3981018066406
1999	51.6914291381836
2000	52.6460189819336
2001	52.0197486877441
2002	53.8052406311035
2003	76.8932189941406
2004	79.9680786132813
2005	84.498176574707
2006	88.7536087036133
2007	93.8098678588867
2008	98.5393676757813
2009	101.828109741211
2010	100.200523376465
2011	101.43440246582
2012	101.758880615234
2013	84.9158096313477
2014	98.9477310180664
2015	85.6220626831055
2016	84.1722183227539
2017	85.5207595825195
2018	87.6014785766602
2019	88.0944290161133
2020	86.4603576660156
