Year Percent 1994-01-01 0.12370899999999999 1995-01-01 1.02053000000000000 1996-01-01 1.59433000000000000 1997-01-01 3.06120000000000000 1998-01-01 7.11282000000000000 1999-01-01 13.97700000000000000 2000-01-01 18.71440000000000000 2001-01-01 28.91150000000000000 2002-01-01 27.76000000000000000 2003-01-01 37.27360000000000000 2004-01-01 45.11340000000000000 2005-01-01 66.95460000000000000 2006-01-01 124.00800000000000000 2007-01-01 101.01100000000001000 2008-01-01 93.48790000000000000 2009-01-01 118.00299999999999000 2010-01-01 104.11100000000000000 2011-01-01 74.05120000000000000 2012-01-01 72.87890000000000000 2013-01-01 71.73890000000000000 2014-01-01 55.55570000000000000 2015-01-01 60.89370000000000000 2016-01-01 56.68840000000000000