Year	Percent Change at Annual Rate
1960-01-01	1.83133434023019000
1961-01-01	1.68704380359958000
1962-01-01	1.54457035247593000
1963-01-01	1.49882709767688000
1964-01-01	1.58938730974683000
1965-01-01	1.72455500723271000
1966-01-01	1.93840814894591000
1967-01-01	2.05235679021275000
1968-01-01	1.98066829243342000
1969-01-01	1.68474322971182000
1970-01-01	1.21740387793725000
1971-01-01	0.69545014664518800
1972-01-01	0.23028139385159700
1973-01-01	0.01393941930638150
1974-01-01	0.08777368885582830
1975-01-01	0.39888587367403500
1976-01-01	0.75724438786649300
1977-01-01	1.05305211985782000
1978-01-01	1.12562396180151000
1979-01-01	0.91575854324753500
1980-01-01	0.51784272963542100
1981-01-01	0.08096145482683530
1982-01-01	-0.27234398579720000
1983-01-01	-0.56431375032276100
1984-01-01	-0.71697407025864100
1985-01-01	-0.77102427195342300
1986-01-01	-0.84272459902245500
1987-01-01	-0.90099993957683900
1988-01-01	-0.87154987125384200
1989-01-01	-0.69938180224422900
1990-01-01	-0.44454521467607400
1991-01-01	-0.11850348432672600
1992-01-01	0.18052073838638600
1993-01-01	0.33760054571418500
1994-01-01	0.22863885737831600
1995-01-01	-0.00700569563343098
1996-01-01	-0.31295416138276400
1997-01-01	-0.55251095464270000
1998-01-01	-0.65653972634136000
1999-01-01	-0.55209744140843400
2000-01-01	-0.32526411585144200
2001-01-01	-0.00861165731877058
2002-01-01	0.22079811685781300
2003-01-01	0.38451414972144100
2004-01-01	0.40719915026928300
2005-01-01	0.35175844391993500
2006-01-01	0.25453582191371600
2007-01-01	0.20175377372024200
2008-01-01	0.17461841872918600
2009-01-01	0.21784510698714400
2010-01-01	0.29578977050283800
2011-01-01	0.38838255556554600
2012-01-01	0.45352813509120300
2013-01-01	0.49292559168597400
2014-01-01	0.52074123378145300
2015-01-01	0.52624487623315400
2016-01-01	0.51941086748973500
2017-01-01	0.51807965718265600