Year	Percent
1960-01-01	3.4782379040960100
1961-01-01	0.9162604318466740
1962-01-01	1.2923621654152000
1963-01-01	3.9549574292974400
1964-01-01	-0.0901365196717473
1965-01-01	-0.4555808658578120
1966-01-01	1.9832189171216400
1967-01-01	3.2909498878167200
1968-01-01	2.1964759828680000
1969-01-01	5.7392536613673300
1970-01-01	4.3555952647056300
1971-01-01	3.5958904107603800
1972-01-01	5.1859504132552100
1973-01-01	4.8909840899256800
1974-01-01	7.6999999997692500
1975-01-01	9.5171773440553700
1976-01-01	12.8232301828134000
1977-01-01	9.1677625399551400
1978-01-01	4.6119428668201600
1991-01-01	180.9523809523810000
1992-01-01	83.6158192090390000
1993-01-01	207.6923076923090000
1994-01-01	448.4999999999990000
1995-01-01	387.3108477666380000
1996-01-01	-16.1173257510572000
1997-01-01	23.0631996788727000
1998-01-01	14.7687735575528000
1999-01-01	12.5777623393436000
2000-01-01	4.9789621318373500
2001-01-01	16.3740814963263000
2002-01-01	19.3166946019790000
2003-01-01	33.6162105992383000
2004-01-01	26.9619068193272000
2005-01-01	36.9594809201871000
2006-01-01	53.2309629114280000
2007-01-01	-10.0674925768978000
2008-01-01	12.6628528269228000
2009-01-01	6.8736154721255000
2010-01-01	2.8777472527475900
2011-01-01	5.8014553708525200
2012-01-01	6.0890964159515500
2013-01-01	1.8794980074942100
2014-01-01	2.2359740790472100
2015-01-01	1.3933302878026400
2016-01-01	0.5254333122961250
2017-01-01	0.1840588988476430