Last Years

Max D

= D/10

Vi = ln

Yi

Yi^2

2005

10.28

1.028

0.027615

−4

−0.11046

16

2006

11.4

1.14

0.131028

−3

−0.39308

9

2007

14.44

1.444

0.367417

−2

−0.73483

4

2008

14.44

1.444

0.367417

−1

−0.36742

1

2009

18.34

1.834

0.606499

0

0

0

2010

18.34

1.834

0.606499

1

0.606499

1

2011

24.73

2.473

0.905432

2

1.810864

4

2012

26.12

2.612

0.960116

3

2.880349

9

2013

25.24

2.524

0.925845

4

3.70338

16