Year Percent 1994 -37.00226 1995 6.41474 1996 2.74655 1997 1.10068 1998 1.95704 1999 9.99391 2000 8.26388 2001 5.27975 2002 4.61977 2003 6.66221 2004 8.56462 2005 11.48502 2006 9.09167 2007 8.58313 2008 5.12496 2009 -1.40285 2010 4.34474 2011 5.38194 2012 5.57781 2013 5.59992 2014 5.40187 2015 5.33342 2016 5.29248 2017 5.193