| Value |
Category |
| -9 |
Don't know |
| -8 |
Refusal |
| -7 |
Does not apply |
| 1990 |
|
| 1992 |
|
| 1994 |
|
| 1995 |
|
| 1998 |
|
| 1999 |
|
| 2004 |
|
| 2005 |
|
| 2006 |
|
| 2007 |
|
| 2008 |
|
| 2010 |
|
| 2011 |
|
| 2012 |
|
| Sysmiss |
|
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.