Year Percent 1995 7.78472 1996 2.61562 1997 -3.8339 1998 -5.37221 1999 -3.02934 2000 10.44235 2001 2.34469 2002 1.48786 2003 -2.12562 2004 -1.12399 2005 0.73175 2006 5.74521 2007 5.1989 2008 14.26221 2009 0.22899 2010 13.44357 2011 4.44991 2012 1.40545 2013 8.20926 2014 2.10621 2015 -3.63898 2016 1.17561 2017 4.69984