Annual Percent
1979-01-01 12.95720822500000
1980-01-01 12.51039237500000
1981-01-01 11.39698347500000
1982-01-01 13.82590838333330
1983-01-01 18.28280067500000
1984-01-01 16.74631604166670
1985-01-01 15.13232179166670
1986-01-01 15.02552623333330
1987-01-01 14.91051019166670
1988-01-01 13.38384435833330
1989-01-01 11.13529940833330
1990-01-01 13.00438025833330
1991-01-01 17.46578266666670
1992-01-01 19.26580596666670
1993-01-01 18.51516653333330
1994-01-01 16.85290680000000
1995-01-01 15.18509660000000
1996-01-01 15.62621051666670
1997-01-01 15.82701260833330
1998-01-01 14.45180999166670
1999-01-01 13.10488204166670
2000-01-01 12.07916349166670
2001-01-01 13.47604389166670
2002-01-01 12.78559900000000
2003-01-01 11.95159687500000
2004-01-01 11.35999159166670
2005-01-01 10.60986773333330
2006-01-01 10.02015143333330
2007-01-01 9.35729292500000
2008-01-01 8.80414470833333
2009-01-01 11.45491990000000
2010-01-01 11.54108625000000
2011-01-01 11.35926146666670
2012-01-01 11.71553416666670
2013-01-01 12.20884795000000
2014-01-01 13.30109051666670
2015-01-01 13.09623085833330
2016-01-01 12.63550175833330
2017-01-01 12.59712292500000