| Last Years | Max D |
| Vi = ln | Yi |
| Yi^2 |
| 2005 | 26.45 | 2.645 | 0.972671 | −4 | −3.89068 | 16 |
| 2006 | 32.09 | 3.209 | 1.165959 | −3 | −3.49788 | 9 |
| 2007 | 30.98 | 3.098 | 1.130757 | −2 | −2.26151 | 4 |
| 2008 | 30.98 | 3.098 | 1.130757 | −1 | −1.13076 | 1 |
| 2009 | 40.04 | 4.004 | 1.387294 | 0 | 0 | 0 |
| 2010 | 40.04 | 4.004 | 1.387294 | 1 | 1.387294 | 1 |
| 2011 | 43.05 | 4.305 | 1.459777 | 2 | 2.919554 | 4 |
| 2012 | 44.42 | 4.442 | 1.491105 | 3 | 4.473314 | 9 |
| 2013 | 44.31 | 4.431 | 1.488625 | 4 | 5.954501 | 16 |
= D/10 
