2012 6.3

2012 5.9

2012 7.1

2012 4.9

2012 5.3

2012 3.1

2011 7.1

2011 7.3

2011 7.5

2011 4.4

2011 5.5

2011 4.9

2011 5.0

2011 7.0

2011 5.7

2011 6.9

2011 6.6

2011 5.8

2011 5.4

2011 6.2