Year	Percent Change at Annual Rate
1961-01-01	0.915161647458334
1962-01-01	0.933264675146887
1963-01-01	0.943908489234289
1964-01-01	0.918272730222114
1965-01-01	0.898571522399465
1966-01-01	0.824450508217538
1967-01-01	0.702148347612905
1968-01-01	0.656615560179645
1969-01-01	0.664903074126372
1970-01-01	0.546132368943432
1971-01-01	0.562353121321053
1972-01-01	0.694797300285586
1973-01-01	0.660072310370325
1974-01-01	0.589717563419413
1975-01-01	0.527775997655027
1976-01-01	0.448374918688430
1977-01-01	0.391704217844335
1978-01-01	0.391760545392913
1979-01-01	0.397128531156724
1980-01-01	0.419632719195334
1981-01-01	0.375434552305691
1982-01-01	0.268657196687556
1983-01-01	0.199127523642233
1984-01-01	0.167989304814625
1985-01-01	0.192016075316729
1986-01-01	0.254392281146693
1987-01-01	0.283938373663233
1988-01-01	0.343726319669656
1989-01-01	0.438648062843356
1990-01-01	0.470723241785549
1991-01-01	0.375054610215358
1992-01-01	0.464942802800451
1993-01-01	0.409676463283645
1994-01-01	0.290910637679303
1995-01-01	0.257508074196380
1996-01-01	0.259020823125127
1997-01-01	0.238598052285766
1998-01-01	0.210884452251918
1999-01-01	0.258243970241566
2000-01-01	0.328448325224073
2001-01-01	0.385014462648584
2002-01-01	0.489061654970428
2003-01-01	0.543192954572419
2004-01-01	0.551279649466579
2005-01-01	0.518155825754832
2006-01-01	0.468266460033860
2007-01-01	0.520476391122912
2008-01-01	0.489880559394635
2009-01-01	0.324929437531821
2010-01-01	0.235742160355159
2011-01-01	-0.214889434041282
2012-01-01	0.224006788677130
2013-01-01	0.340597383362834
2014-01-01	0.338173340608677
2015-01-01	0.315305568512628
2016-01-01	0.319226551429793
2017-01-01	0.248899237679765