Year Percent 1995-01-01 23.556200000000000 1996-01-01 7.825830000000001 1997-01-01 4.838670000000000 1998-01-01 4.227519999999999 1999-01-01 3.777350000000000 2000-01-01 3.777350000000000 2001-01-01 3.777350000000000 2002-01-01 2.513030000000000 2003-01-01 1.891420000000000 2004-01-01 1.312110000000000 2005-01-01 0.623235000000000 2006-01-01 0.501826000000000 2007-01-01 0.501826000000000 2008-01-01 0.501826000000000 2009-01-01 0.501826000000000 2010-01-01 0.501826000000000 2011-01-01 3.001170000000000 2012-01-01 5.566930000000000