Year	Percent
1962-01-01	1.787617876105230
1963-01-01	4.616128252987110
1964-01-01	-4.535653781236730
1965-01-01	1.218036621688560
1966-01-01	0.239081925328185
1967-01-01	1.407218953816780
1968-01-01	4.178753430128880
1969-01-01	5.012040938840120
1970-01-01	-1.985093879619930
1971-01-01	3.056225780450090
1972-01-01	8.698119900794330
1973-01-01	6.918608445890200
1974-01-01	9.236310359668550
1975-01-01	25.924999999499900
1976-01-01	17.027331083251900
1977-01-01	12.389730830128600
1978-01-01	8.855345912140900
1979-01-01	6.128957707342820
1980-01-01	6.824615652477960
1981-01-01	5.944227006144440
1982-01-01	10.855845455308900
1983-01-01	10.636303676138500
1984-01-01	22.098459414532800
1985-01-01	18.319884874273000
1986-01-01	56.560172013504100
1987-01-01	23.529166955694000
1988-01-01	11.690586887676400
1989-01-01	8.275016087515910
1990-01-01	12.167784113069500
1991-01-01	8.642343259734350
1992-01-01	9.486542506171660
1993-01-01	6.463804227538460
1994-01-01	1.710206323056390
1995-01-01	6.980974418305520
1996-01-01	1.099488707710210
1997-01-01	2.781227900232260
1998-01-01	1.114188411747150
1999-01-01	3.812372053660240
2000-01-01	0.844969566773687
2001-01-01	4.492596092397520
2002-01-01	8.609124743863260
2003-01-01	17.032866543198900
2004-01-01	14.206743284556800
2005-01-01	4.838621775431610
2006-01-01	2.056503425268910
2007-01-01	5.369134737088060
2008-01-01	4.443654910296540
2009-01-01	4.561581547427910
2010-01-01	5.048936575568930
2011-01-01	4.796484978653200
2012-01-01	4.254534775463770
2013-01-01	5.699730296673670
2014-01-01	5.947374921647200
2015-01-01	6.808326251748060
2016-01-01	7.228792720579300