Year	Percent
1992-01-01	7.1100900000000000
1993-01-01	2.8472900000000000
1994-01-01	7.3711199999999995
1995-01-01	15.4285000000000000
1996-01-01	19.3643000000000000
1997-01-01	14.0763000000000000
1998-01-01	26.8083000000000000
1999-01-01	143.0880000000000000
2000-01-01	177.4900000000000000
2001-01-01	67.0123000000000000
2002-01-01	10.8767000000000000
2003-01-01	5.6957900000000010
2004-01-01	3.4775500000000000
2005-01-01	7.1964100000000000
2006-01-01	19.7594000000000000
2007-01-01	25.8559999999999980
2008-01-01	13.4351000000000000
2009-01-01	19.9892000000000000
2010-01-01	8.9716200000000000
2011-01-01	8.8933699999999990
2012-01-01	12.7338000000000000
2013-01-01	1.9777900000000002
2014-01-01	1.8312500000000000
2015-01-01	4.3310300000000000
2016-01-01	2.8906200000000000
2017-01-01	2.5748800000000000