| 1 | A | B | C | D | E | F | G |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 2 | note 1 |  |  |  |  |  |  |
| 3 |  | undergraduate degree |  |  | graduate degree |  |  |
| 4 |  | unadjusted gap | adjusted gap |  | unadjusted gap | adjusted gap |  |
| 5 |  |  | model a | model b |  | model a | model b |
| 6 |  | percent |  |  |  |  |  |
| 7 | cohort |  |  |  |  |  |  |
| 8 | 2006 | -1.9 | -1.8 | -0.6 | -5.8 | -3.7 | 1.7 |
| 9 | 2007 | -0.5 | 0.6 | 0.7 | -15.8 | -13.1 | -8.2 |
| 10 | 2008 | .. | .. | .. | .. | .. | .. |
| 11 | 2009 | -7.6 | -7.3 | -7.8 | -9.8 | -8.1 | -9.4 |
| 12 | 2010 | -7.7 | -7.2 | -10.0 | -13.6 | -9.8 | -8.4 |
| 13 | 2011 | -10.1 | -8.5 | -11.1 | -3.2 | 2.1 | 0.5 |

Question: even after taking demographic and field of study differences into account, how many percent of undergraduate students who graduated in 2009 earned is less than those who graduated in 2008?
Answer: 8.1