2004

17.41

19.82

0.88

2004

13.51

20.02

0.67

2005

18.53

19.65

0.94

2005

13.47

19.51

0.69

2006

18.84

19.95

0.94

2006

14.58

20.18

0.72

2007

19.26

19.77

0.97

2007

15.37

19.86

0.77

2008

18.14

19.50

0.93

2008

14.25

19.98

0.71

2009

17.98

20.13

0.89

2009

14.42

20.26

0.71

2010

14.38

19.79

0.73

2010

14.54

19.50

0.75

2011

14.63

19.66

0.74

2011

15.97

20.09

0.79

2012

14.33

19.44

0.74

2012

16.57

18.51

0.90

2013

14.10

19.57

0.72

2013

18.87

19.04

0.99

2014

15.11

19.79

0.76

2014

20.28

20.55

0.99

2015

15.15

19.70

0.77

2015

20.93

19.88

1.05

2016

17.21

19.94

0.86

2016

21.68

19.99

1.08

2017

15.81

20.01

0.79

2017

22.29

20.10

1.11

Ave.

16.24

19.78

0.82

Ave.

14.26

19.74

0.72