| Value |
Category |
| -99 |
Don't know |
| -95 |
|
| -90 |
Did not ask |
| 1 |
Yes |
| 2 |
No |
| 1991 |
|
| 1998 |
|
| 2003 |
|
| 2006 |
|
| 2007 |
|
| 2008 |
|
| 2009 |
|
| 2010 |
|
| 2011 |
|
| 2012 |
|
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.