6.20%
2.27%
2003
5.30%
2.68%
2004
5.10%
3.39%
2005
4.90%
3.24%
2006
5.00%
2.85%
2007
6.00%
3.85%
2008
9.30%
-0.34%
2009
9.10%
1.64%
2010
8.50%
3.16%
2011
8.07%
2.07%
2012
7.40%
1.47%
2013