Year Percent 1995 8.84743 1996 -17.05676 1997 13.01148 1998 -1.58193 1999 8.35565 2000 28.79014 2001 2.96196 2002 4.46158 2003 0.91238 2004 2.5725 2005 2.82627 2006 7.83152 2007 6.29489 2008 7.20968 2009 0.17019 2010 1.40397 2011 2.43639 2012 0.79567 2013 -0.22367 2014 1.00456 2015 1.36644 2016 1.41065 2017 2.34642