Year	Percent
1969-01-01	-1.1015911872741000
1970-01-01	5.8580858085174100
1971-01-01	4.0140296180985500
1972-01-01	8.0929186957962100
1973-01-01	10.3847487003840000
1974-01-01	17.2329334923306000
1975-01-01	13.5533294051262000
1976-01-01	9.9306505636972500
1977-01-01	14.6983091581554000
1978-01-01	12.4630523441787000
1979-01-01	6.5806108190271100
1980-01-01	9.5517542764287100
1981-01-01	10.7275000000004000
1982-01-01	13.2570198610704000
1983-01-01	16.6312264100787000
1984-01-01	11.3733220902937000
1985-01-01	8.5083743439159500
1986-01-01	7.7700249870353300
1987-01-01	13.1404998447010000
1988-01-01	1.6823326077120900
1989-01-01	-1.6655258955054000
1990-01-01	1.0993812838360600
1991-01-01	0.0600513305003629
1992-01-01	-0.0160550458717504
1993-01-01	-3.2065545691586900
1994-01-01	35.0944618459464000
1995-01-01	9.0696907192150700
1996-01-01	3.9240637274980000
1997-01-01	4.7862388186037300
1998-01-01	3.1707518538690700
1999-01-01	1.8717450067200900
2000-01-01	1.2271901297613500
2001-01-01	4.4197724588114300
2002-01-01	2.8344226012806700
2003-01-01	0.6231635573743200
2004-01-01	0.2336473800676030
2005-01-01	2.0135395017598600
2006-01-01	5.1175781601946800
2007-01-01	0.9214022456501110
2008-01-01	5.3378062762750000
2009-01-01	3.0436184793999700
2010-01-01	1.2753804624234100
2011-01-01	2.9396994630509400
2012-01-01	2.7352967752953700
2013-01-01	2.0503471800174200
2014-01-01	1.8548985036677600
2015-01-01	2.6762353141990200
2016-01-01	0.8741903832888430
2017-01-01	0.6404091498819810