Year	Percent
1989-01-01	0.1581530000000000
1990-01-01	0.1610230000000000
1991-01-01	0.2140710000000000
1992-01-01	0.6407220000000000
1993-01-01	3.9047000000000000
1994-01-01	4.9900900000000000
1995-01-01	6.4780000000000000
1996-01-01	6.5321700000000000
1997-01-01	6.1588600000000000
1998-01-01	5.6414599999999995
1999-01-01	4.7209500000000000
2000-01-01	4.4338800000000000
2001-01-01	2.8139300000000000
2002-01-01	1.5442900000000000
2003-01-01	1.6551500000000000
2004-01-01	1.5443500000000000
2005-01-01	1.8453800000000000
2006-01-01	3.3213000000000000
2007-01-01	6.0246000000000000
2008-01-01	5.1934000000000000
2009-01-01	2.7050000000000000
2010-01-01	2.4292599999999998
2011-01-01	2.7023900000000003
2012-01-01	2.7824900000000000
2013-01-01	2.0841400000000000
2014-01-01	1.5619700000000000
2015-01-01	1.1518600000000000
2016-01-01	1.0561300000000000
2017-01-01	2.1664700000000000