Year Percent 1996 0.07506 1999 0.47677 2000 -0.04243 2001 -0.07897 2002 -0.20293 2003 0.14044 2004 -0.02004 2005 0.76813 2006 -0.16438 2007 0.55961 2008 0.4416 2009 0.01682 2010 0.60931 2011 -0.47293 2012 -0.16784 2013 0.30064 2014 0.88484 2015 0.42386 2016 0.55041 2017 -1.85744