Year	Percent
1966-01-01	-1.361867704669100
1967-01-01	0.808678501054675
1968-01-01	0.182612665558972
1969-01-01	1.425688431486320
1970-01-01	10.121951219563600
1971-01-01	0.536224281695186
1972-01-01	-6.081511971791280
1973-01-01	8.913580246958160
1974-01-01	8.592155973910850
1975-01-01	6.550104383941950
1976-01-01	28.537839823784900
1977-01-01	16.657139590850300
1978-01-01	14.308114464915400
1979-01-01	16.032235939652000
1980-01-01	4.482537806004330
1981-01-01	6.135967186804340
1982-01-01	5.890061077239620
1983-01-01	-0.675378064854715
1984-01-01	8.417273783120570
1985-01-01	19.064685144440600
1986-01-01	-9.808765070506620
1987-01-01	-2.428672482833710
1988-01-01	7.080715321410950
1989-01-01	7.817301182230480
1990-01-01	5.152481241747630
1991-01-01	35.722598229871600
1992-01-01	10.527444011959200
1993-01-01	3.543065961660330
1994-01-01	7.593876001853390
1995-01-01	10.022173355323800
1996-01-01	-8.484248689488220
1997-01-01	2.395209580838320
1998-01-01	0.894801693964068
1999-01-01	7.941448641373280
2000-01-01	0.662458109266458
2001-01-01	-8.237844533911350
2002-01-01	0.675089102170803
2003-01-01	13.674045202827100
2004-01-01	3.327370478948510
2005-01-01	9.969971235128920
2006-01-01	12.299476311482500
2007-01-01	17.240400834089600
2008-01-01	44.356685876695200
2009-01-01	8.483644045302920
2010-01-01	8.149264029650780
2011-01-01	33.249959882334500
2012-01-01	24.124353950955300
2013-01-01	8.079723677883460
2014-01-01	7.402193468342250
2015-01-01	10.110747736102700
2016-01-01	7.263731539190250
2017-01-01	9.848250242087420