Year	Percent Change at Annual Rate
1960-01-01	0.26750579682728000
1961-01-01	0.45323964398848900
1962-01-01	0.32266128504506600
1963-01-01	0.26018292584821900
1964-01-01	0.31560144966103000
1965-01-01	0.27728771349503600
1966-01-01	0.30224475828958100
1967-01-01	0.37215558305245300
1968-01-01	0.38306218671480000
1969-01-01	0.41750451727434100
1970-01-01	0.37978140233220600
1971-01-01	0.28617609868191900
1972-01-01	0.29810251534183600
1973-01-01	0.32227702792653000
1974-01-01	0.44632566192729400
1975-01-01	0.58808180904707100
1976-01-01	0.55018298882791700
1977-01-01	0.46458104257404900
1978-01-01	0.34492373313530500
1979-01-01	0.18074738192239300
1980-01-01	0.06509372932711250
1981-01-01	0.00677777171213337
1982-01-01	-0.05895211551133630
1983-01-01	-0.15024075275146800
1984-01-01	-0.20009784947921000
1985-01-01	-0.18184716343174400
1986-01-01	-0.17057914515342300
1987-01-01	-0.16779878820112200
1988-01-01	-0.15327293555496300
1989-01-01	-1.08898389340205000
1990-01-01	-1.03311729690015000
1991-01-01	-0.00566818338922841
1992-01-01	-0.03913658326841340
1993-01-01	-0.11403559439276100
1994-01-01	-0.13688310430324000
1995-01-01	-0.13922000360142900
1996-01-01	-0.17177160862902500
1997-01-01	-0.20145893633580800
1998-01-01	-0.23267933686649700
1999-01-01	-0.28326061048519400
2000-01-01	-0.25976490828863300
2001-01-01	-0.22937918330844700
2002-01-01	-0.28475137719698000
2003-01-01	-0.28643326812868800
2004-01-01	-0.22143937865480700
2005-01-01	-0.19887884323710300
2006-01-01	-0.15571648465157800
2007-01-01	-0.15491515806094800
2008-01-01	-0.17509736747488000
2009-01-01	-0.15490881395062100
2010-01-01	-0.22601387568969800
2011-01-01	-0.28336043594694800
2012-01-01	-0.51643760654804100
2013-01-01	-0.27536875707442000
2014-01-01	-0.26937876716511600
2015-01-01	-0.23785500198465700
2016-01-01	-0.29511060484547800
2017-01-01	-0.33575686742665000