| Value |
Category |
| 3 |
Year 2003 |
| 4 |
Year 2004 |
| 5 |
Year 2005 |
| 6 |
Year 2006 |
| 7 |
Year 2007 |
| 8 |
Year 2008 |
| 9 |
Year 2009 |
| 99 |
Unspecified |
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.