Year	Percent
1964-01-01	1.0040160642667300
1965-01-01	4.3737574563058800
1966-01-01	10.5714285704761000
1967-01-01	0.4306632213644260
1968-01-01	-2.9230989129747500
1969-01-01	10.6456600158434000
1970-01-01	1.1178388449055900
1971-01-01	4.1916167664867600
1972-01-01	9.7511683720270400
1973-01-01	11.7850155367474000
1974-01-01	3.3975084937332800
1975-01-01	9.1158020513705700
1976-01-01	23.5296801569284000
1977-01-01	23.2510896063330000
1978-01-01	10.0932002756994000
1979-01-01	7.2678770722335700
1980-01-01	10.3052757124046000
1981-01-01	22.9134075641636000
1982-01-01	11.6418357416784000
1983-01-01	-2.4896056867148900
1984-01-01	8.3644241182996900
1985-01-01	-0.9233991239948370
1986-01-01	-3.2075713416568500
1987-01-01	-6.7121089290119500
1988-01-01	-1.3939630404709100
1989-01-01	-2.8435251798562300
1990-01-01	-0.7756530109774550
1991-01-01	-7.7966417910446900
1992-01-01	-4.4756179024717500
1993-01-01	-1.2150349650349700
1994-01-01	36.0410583134242000
1995-01-01	10.5632886691814000
1996-01-01	5.2888575126488200
1997-01-01	2.9334525339442100
1998-01-01	4.5480157771872100
1999-01-01	-2.3021250384964700
2000-01-01	2.9001497359911100
2001-01-01	4.0055142835267600
2002-01-01	2.6288659793813600
2003-01-01	-1.6144076917559600
2004-01-01	0.2625437572928460
2005-01-01	7.7974978178644000
2006-01-01	0.0404858299595059
2007-01-01	0.0539592607581487
2008-01-01	11.3051098827019000
2009-01-01	0.5829065908011390
2010-01-01	0.8040730808826350
2011-01-01	2.9423851401331400
2012-01-01	0.4550898203592960
2013-01-01	2.2972311495531800
2014-01-01	-0.9302872599845010
2015-01-01	0.9983295820818540
2016-01-01	0.1770378767878580
2017-01-01	2.3826871502317400