Year Percent 1995-01-01 59.41740000000000 1996-01-01 75.91340000000000 1997-01-01 79.99510000000000 1998-01-01 74.56500000000000 1999-01-01 93.10460000000000 2000-01-01 118.53399999999999 2001-01-01 108.78399999999999 2002-01-01 95.08960000000000 2003-01-01 63.78200000000000 2004-01-01 50.94160000000000 2005-01-01 61.79830000000000 2006-01-01 82.36120000000000 2007-01-01 92.08280000000000 2008-01-01 55.89150000000000 2009-01-01 59.41350000000000 2010-01-01 67.21790000000000 2011-01-01 65.58810000000000 2012-01-01 21.15990000000000 2013-01-01 24.43630000000000 2014-01-01 13.21880000000000 2015-01-01 7.60898000000000 2016-01-01 14.13840000000000