| Last Years | Max D |
| Vi = ln | Yi |
| Yi^2 |
| 2005 | 48.32 | 4.832 | 1.57526 | −4 | −6.30104 | 16 |
| 2006 | 58.53 | 5.853 | 1.766954 | −3 | −5.30086 | 9 |
| 2007 | 58 | 5.8 | 1.757858 | −2 | −3.51572 | 4 |
| 2008 | 59.3 | 5.93 | 1.780024 | −1 | −1.78002 | 1 |
| 2009 | 71.02 | 7.102 | 1.960376 | 0 | 0 | 0 |
| 2010 | 71.02 | 7.102 | 1.960376 | 1 | 1.960376 | 1 |
| 2011 | 76.66 | 7.666 | 2.036795 | 2 | 4.07359 | 4 |
| 2012 | 84.04 | 8.404 | 2.128708 | 3 | 6.386123 | 9 |
| 2013 | 84.38 | 8.438 | 2.132745 | 4 | 8.530981 | 16 |
= D/10 
