Year annual % 2001 38.59188944886 2002 12.2499847845885 2003 16.3034912049491 2004 7.14196508692253 2005 7.09193244083773 2006 10.0108651886461 2007 13.1491247062982 2008 20.4705219109964 2009 6.44823481066697 2010 6.44531440780658 2011 12.4315490430406 2012 5.83116601031462 2013 5.00964645344951 2014 6.10442765129667 2015 5.7145594964971 2016 6.00458082322139