Year Percent 2000 2.09979 2001 -3.29433 2002 -2.51679 2003 11.23629 2004 2.83546 2005 10.17261 2006 4.89352 2007 4.76823 2008 1.26439 2009 -1.89188 2010 4.20267 2011 -62.22509 2012 122.9683 2013 -13.56809 2014 -24.09969 2015 -9.31294 2016 -3.69593 2017 25.05903