Year Percent 1994-01-01 0.46592400000000000 1995-01-01 0.38577300000000000 1996-01-01 0.07285200000000000 1997-01-01 0.68494800000000000 1998-01-01 0.70106600000000000 1999-01-01 1.07589000000000000 2000-01-01 0.44251599999999996 2001-01-01 0.51671600000000000 2002-01-01 1.30391000000000010 2003-01-01 2.74402000000000000 2004-01-01 3.37097000000000000 2005-01-01 4.64866000000000000 2006-01-01 5.77811000000000000 2007-01-01 7.05221999999999900 2008-01-01 5.98820000000000000 2009-01-01 8.24695000000000000 2010-01-01 7.80388999999999900 2011-01-01 6.67557000000000000 2012-01-01 8.70197000000000000 2013-01-01 9.60710000000000000 2014-01-01 9.70014000000000000 2015-01-01 13.64170000000000000 2016-01-01 14.55350000000000000