Year	Percent
1996-01-01	2.4966200000000000
1997-01-01	7.6181100000000010
1998-01-01	2.4082400000000000
1999-01-01	1.8151300000000000
2000-01-01	5.6393800000000000
2001-01-01	-0.3682710000000000
2002-01-01	-24.0513000000000000
2003-01-01	-32.4694000000000000
2004-01-01	-5.9059099999999995
2005-01-01	6.2774600000000000
2006-01-01	13.6240000000000000
2007-01-01	11.5028000000000000
2008-01-01	13.9778000000000000
2009-01-01	20.5732000000000000
2010-01-01	25.0637000000000000
2011-01-01	25.6268000000000000
2012-01-01	25.5731000000000000
2013-01-01	25.8397000000000000
2014-01-01	30.8206000000000000
2015-01-01	26.5024000000000000
2016-01-01	28.5435000000000000