Year	Percent Change at Annual Rate
1960-01-01	2.0267360399877700
1961-01-01	1.9864741026439800
1962-01-01	2.8573372444055900
1963-01-01	2.7779564107075700
1964-01-01	2.7028672387919400
1965-01-01	2.6317308317373400
1966-01-01	2.5642430613337700
1967-01-01	2.5882747833223000
1968-01-01	2.4370222603161400
1969-01-01	2.3790416836635700
1970-01-01	2.3237560125971400
1971-01-01	2.2709816198764800
1972-01-01	2.4555689257443700
1973-01-01	2.3202897079663800
1974-01-01	2.3423813674028500
1975-01-01	2.2157479597276400
1976-01-01	2.2391690314901200
1977-01-01	2.1202207650602900
1978-01-01	2.0761991448429200
1979-01-01	2.1010600062356400
1980-01-01	1.9920977494554300
1981-01-01	2.0176408483871200
1982-01-01	1.9145447584435100
1983-01-01	2.0025700502294800
1984-01-01	2.0239881347746100
1985-01-01	2.1028110355253000
1986-01-01	2.0595020364582200
1987-01-01	2.0750024023759100
1988-01-01	2.1445517139477200
1989-01-01	1.9901154317295000
1990-01-01	1.8975901459005600
1991-01-01	1.9149521332860700
1992-01-01	1.7755035602590100
1993-01-01	1.6936509530898300
1994-01-01	1.6153809112453500
1995-01-01	1.5897006409999500
1996-01-01	1.4677367201974700
1997-01-01	1.3027928532928200
1998-01-01	-5.9247334853605900
1999-01-01	-10.9551494210987000
2000-01-01	-3.5821276451817300
2001-01-01	0.0678593232934242
2002-01-01	0.0679307931245331
2003-01-01	0.0678846785222277
2004-01-01	0.0678386264869726
2005-01-01	0.0679098853744036
2006-01-01	0.8032002859533620
2007-01-01	0.8032618329279160
2008-01-01	0.8032134775691890
2009-01-01	0.8031718447931220
2010-01-01	0.8032489612777540
2011-01-01	0.8566665701399790
2012-01-01	0.7921275113910100
2013-01-01	0.7129961149434880
2014-01-01	-0.2944736308660660
2015-01-01	-0.8653980603177330