| Year | Loss | 0% - 15% | 20% - 50% | 50% - 100% | >100% |
| 2006 | 73.8 | 6 | 3.6 | 2.4 | 14.2 |
| 2007 | 61.2 | 9.2 | 6.1 | 8.2 | 10.2 |
| 2008 | 63.2 | 3.4 | 4.1 | 8.9 | 17.1 |
| 2009 | 63 | 4.8 | 10.6 | 4.2 | 14.3 |
| 2010 | 63.2 | 8 | 4.7 | 4.2 | 17.9 |
| 2011 | 47.9 | 9.9 | 10.6 | 6.5 | 22.1 |
| 2012 | 47 | 8.6 | 10.5 | 4.5 | 25.9 |
| 2013 | 67.1 | 2.4 | 8.7 | 2.2 | 16.9 |
| 2014 | 56.9 | 4.7 | 9.4 | 11.6 | 13.1 |
| 2015 | 48.9 | 12.1 | 11.8 | 7.4 | 16.2 |
| 2016 | 56.9 | 9.7 | 9.9 | 5.8 | 15.1 |