Year	Percent
1995-01-01	15.27480
1996-01-01	19.68480
1997-01-01	30.85450
1998-01-01	9.59347
1999-01-01	24.87450
2000-01-01	18.15810
2001-01-01	24.61420
2002-01-01	22.14370
2003-01-01	29.17500
2004-01-01	25.39060
2005-01-01	28.40740
2006-01-01	20.68610
2007-01-01	56.47900
2008-01-01	24.59160
2009-01-01	23.36380
2010-01-01	11.18290
2011-01-01	31.85260
2012-01-01	24.01960
2013-01-01	23.42600
2014-01-01	12.02970
2015-01-01	16.26040
2016-01-01	22.01910