2009-2010

0.46

(0.41, 0.51)**

0.75

(0.69, 0.81)**

2010-2011

0.50

(0.45, 0.56)**

0.69

(0.63, 0.74)**

2011-2012

0.42

(0.39, 0.46)**

0.57

(0.52, 0.61)**

2012-2013

0.46

(0.42, 0.49)**

0.66

(0.61, 0.72)**

2013-2014

0.40

(0.38, 0.43)**

0.58

(0.53, 0.62)**