Year Percent 1989-01-01 0.44419200000000003 1990-01-01 0.50209100000000000 1991-01-01 0.91416200000000000 1992-01-01 1.58105000000000000 1993-01-01 0.07873000000000000 1994-01-01 0.09243700000000000 1995-01-01 0.17678600000000000 1996-01-01 8.31086000000000000 1997-01-01 12.28920000000000000 1998-01-01 14.98450000000000000 1999-01-01 22.95420000000000000 2000-01-01 33.54060000000000000 2001-01-01 27.74840000000000000 2002-01-01 25.69740000000000000 2003-01-01 55.63030000000000000 2004-01-01 105.75299999999999000 2005-01-01 127.42900000000000000 2006-01-01 96.65390000000000000 2007-01-01 73.13550000000000000 2008-01-01 44.16490000000000000 2009-01-01 15.57880000000000000 2010-01-01 8.15687000000000000 2011-01-01 4.99754000000000000 2012-01-01 4.78540000000000000 2013-01-01 2.63673000000000000 2014-01-01 0.22163000000000002 2015-01-01 5.04249000000000000 2016-01-01 9.71248999999999900