| Time (Year) | IF | Time (Year) | IF |
| 2004 | 5.8205 | 2009 | 9.2033 |
| 2005 | 6.77 | 2010 | 9.45755 |
| 2006 | 7.50235 | 2011 | 12.41825 |
| 2007 | 7.44335 | 2012 | 11.0115 |
| 2008 | 8.3025 | 2013 | 12.41825 |