Year Percent 1993-01-01 1.3802299999999998 1994-01-01 2.1144800000000000 1995-01-01 3.8679400000000000 1996-01-01 9.8925100000000010 1997-01-01 10.4699000000000000 1998-01-01 4.7092700000000000 1999-01-01 3.3665300000000005 2000-01-01 3.4153300000000004 2001-01-01 2.7865200000000000 2002-01-01 14.1450000000000000 2003-01-01 2.6676300000000000 2004-01-01 4.3048100000000000 2005-01-01 4.6270300000000000 2006-01-01 4.8130300000000000 2007-01-01 7.7668899999999990 2008-01-01 11.2951000000000000 2009-01-01 15.6751000000000000 2010-01-01 26.2671000000000000 2011-01-01 34.3255000000000000 2012-01-01 14.4579000000000000 2013-01-01 14.4579000000000000 2014-01-01 14.4579000000000000 2015-01-01 14.4579000000000000 2016-01-01 14.4579000000000000 2017-01-01 33.6009000000000000