Year	Percent
1986-01-01	-17.640424092037100
1987-01-01	-13.174472747192700
1988-01-01	2.523659305993910
1989-01-01	6.166153846153620
1990-01-01	0.857871551124760
1991-01-01	-3.425287356322030
1992-01-01	-4.278743156391300
1993-01-01	5.452284737332800
1994-01-01	31.841016841638500
1995-01-01	19.872434948347200
1996-01-01	4.540727715402350
1997-01-01	3.016505406943660
1998-01-01	7.935710698141480
1999-01-01	0.372266170311917
2000-01-01	4.802288869013990
2001-01-01	8.825389258549650
2002-01-01	7.592478498332420
2003-01-01	7.323543993518070
2004-01-01	4.219687870948340
2005-01-01	5.631633513576130
2006-01-01	4.415899841695620
2007-01-01	2.803738317757010
2008-01-01	6.551766911845360
2009-01-01	4.691065677473800
2010-01-01	7.789165479911810
2011-01-01	4.805389221556870
2012-01-01	3.656620482788200
2013-01-01	2.948876946396570
2014-01-01	4.309998661491120
2015-01-01	1.676630853159850
2016-01-01	1.411939154790140
2017-01-01	0.744354746612459