Year	Percent Change at Annual Rate
1961-01-01	0.8567902732274750
1962-01-01	0.8870626761232220
1963-01-01	0.8934289266944400
1964-01-01	0.8759809115223050
1965-01-01	0.8292730967014850
1966-01-01	0.7660953350678170
1967-01-01	0.7271789260038730
1968-01-01	0.6715420623975920
1969-01-01	0.6441962802745280
1970-01-01	0.5302359451600440
1971-01-01	0.5290499053814270
1972-01-01	0.6418937008863000
1973-01-01	0.6052626816548350
1974-01-01	0.5589946749053070
1975-01-01	0.5281143232088110
1976-01-01	0.4694834142866710
1977-01-01	0.4129472355357110
1978-01-01	0.3946802516640990
1979-01-01	0.3883715346961050
1980-01-01	0.4117665272311370
1981-01-01	0.3675693474676220
1982-01-01	0.2766696706222550
1983-01-01	0.2309431743339590
1984-01-01	0.2204537232401550
1985-01-01	0.2419921481119190
1986-01-01	0.2761278688237210
1987-01-01	0.2853720090233480
1988-01-01	0.3187210435149840
1989-01-01	0.3368934502803140
1990-01-01	0.3386313543650060
1991-01-01	0.2031563218606750
1992-01-01	0.3052486478952970
1993-01-01	0.3456867195028080
1994-01-01	0.2413525665333510
1995-01-01	0.2086853997641780
1996-01-01	0.1506122567516570
1997-01-01	0.1837890070248990
1998-01-01	0.1386680310958180
1999-01-01	0.2000746575174330
2000-01-01	0.1311619213944650
2001-01-01	0.2000973692362040
2002-01-01	0.2523912301005420
2003-01-01	0.3690664723267500
2004-01-01	0.3987049031928650
2005-01-01	0.3951054218206880
2006-01-01	0.3746522434356620
2007-01-01	0.3901681862274840
2008-01-01	0.3784290863992650
2009-01-01	0.3008093862870280
2010-01-01	0.2191779508986540
2011-01-01	-0.0804397316221781
2012-01-01	0.2186780529754910
2013-01-01	0.2976669537246010
2014-01-01	0.3104414658125880
2015-01-01	0.2998278971769960
2016-01-01	0.2945515441993510
2017-01-01	0.2430132873006130