Year	annual %
2001	5.5545939481681
2002	3.53304214308079
2003	3.79908136671903
2004	4.47499289078105
2005	3.0133239505812
2006	3.37436360121207
2007	4.46616710098134
2008	1.70078176284526
2009	4.36234829325718
2010	3.35475770328922
2011	1.8426630075621
2012	6.31474450315196
2013	-4.29487331536736