| Value |
Category |
| -2 |
Do not know |
| -1 |
Refused |
| 1950 |
|
| 1957 |
|
| 1960 |
|
| 1963 |
|
| 1965 |
|
| 1970 |
|
| 1980 |
|
| 1998 |
|
| 2000 |
|
| 2001 |
|
| 2002 |
|
| 2005 |
|
| 2006 |
|
| 2007 |
|
| 2008 |
|
| 2009 |
|
| 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.