Year	Percent Change at Annual Rate
1960-01-01	2.500918216584170000
1961-01-01	2.490144278815170000
1962-01-01	2.496980625453190000
1963-01-01	2.554168005394660000
1964-01-01	2.682791407463950000
1965-01-01	2.845611094471320000
1966-01-01	3.011599592836390000
1967-01-01	3.144764516260050000
1968-01-01	3.233294517312350000
1969-01-01	3.258841684701610000
1970-01-01	3.245866857984970000
1971-01-01	3.216880224699190000
1972-01-01	3.192103611067870000
1973-01-01	3.177149357112420000
1974-01-01	3.186757587639980000
1975-01-01	3.204977293938890000
1976-01-01	3.225582793303860000
1977-01-01	3.230912278595020000
1978-01-01	3.179356450118620000
1979-01-01	3.067792642823650000
1980-01-01	2.921743930088570000
1981-01-01	2.702345859300000000
1982-01-01	2.506502852410000000
1983-01-01	2.473957565053850000
1984-01-01	2.651659938436930000
1985-01-01	2.923007367335600000
1986-01-01	3.320692846797900000
1987-01-01	3.556444687441160000
1988-01-01	3.308906485605190000
1989-01-01	2.479101311514680000
1990-01-01	1.315757921138880000
1991-01-01	0.000744487997004182
1992-01-01	-1.077658540471660000
1993-01-01	-1.594508494969140000
1994-01-01	-1.272405154664670000
1995-01-01	-0.315305968142064000
1996-01-01	0.851905101779945000
1997-01-01	1.807620713922320000
1998-01-01	2.502864307185760000
1999-01-01	2.798769198919670000
2000-01-01	2.807182638734390000
2001-01-01	2.783288408303510000
2002-01-01	2.809384437515830000
2003-01-01	2.770472021715140000
2004-01-01	2.666579883959220000
2005-01-01	2.522569588962370000
2006-01-01	2.346316849640070000
2007-01-01	2.167558628927450000
2008-01-01	2.016340283221760000
2009-01-01	1.908765546233590000
2010-01-01	1.828358142216590000
2011-01-01	1.753134330654990000
2012-01-01	1.668226413277160000
2013-01-01	1.580344999646650000
2014-01-01	1.490482105117180000
2015-01-01	1.398892513000370000
2016-01-01	1.309546954867920000
2017-01-01	1.226520086484060000