Year	Percent
1980-01-01	0.6544140000000000
1981-01-01	0.7325430000000000
1982-01-01	5.4782000000000000
1983-01-01	5.6471800000000005
1984-01-01	6.8365600000000000
1985-01-01	8.8711200000000000
1986-01-01	7.4045800000000000
1987-01-01	5.5246900000000005
1988-01-01	1.1983000000000000
1989-01-01	1.3163000000000000
1990-01-01	3.2576800000000000
1991-01-01	2.0628400000000000
1992-01-01	1.2092399999999999
1993-01-01	1.1102000000000000
1994-01-01	0.7567820000000000
1995-01-01	0.6162890000000001
1996-01-01	0.7029080000000000
1997-01-01	1.2751200000000000
1998-01-01	2.1705700000000000
1999-01-01	0.9831740000000000
2000-01-01	0.9253420000000000
2001-01-01	1.2948500000000000
2002-01-01	1.1839899999999999
2003-01-01	0.9429870000000001
2004-01-01	0.9274580000000000
2005-01-01	0.9795940000000001
2006-01-01	0.7027670000000000
2007-01-01	1.0134000000000000
2008-01-01	1.9308000000000000
2009-01-01	2.5130700000000000
2010-01-01	2.2410700000000000
2011-01-01	2.2776200000000000
2012-01-01	2.5562600000000000
2013-01-01	2.6857599999999997
2014-01-01	3.4283300000000003
2015-01-01	2.8868200000000000
2016-01-01	3.3858699999999997