Year Percent 1993-01-01 22.310400000000000 1994-01-01 9.796810000000000 1995-01-01 8.623940000000000 1996-01-01 42.277700000000000 1997-01-01 42.277700000000000 1998-01-01 101.510000000000000 1999-01-01 4.844310000000000 2000-01-01 3.805350000000000 2001-01-01 67.734400000000000 2002-01-01 40.610200000000000 2003-01-01 9.079419999999999 2004-01-01 19.449500000000000 2005-01-01 20.040200000000000 2006-01-01 24.313700000000000 2007-01-01 42.130100000000000 2008-01-01 7.949180000000000 2009-01-01 5.687750000000000 2010-01-01 4.819360000000000 2011-01-01 3.997500000000000 2012-01-01 5.049700000000000