| Value |
Category |
| -9 |
Don't know |
| 1903 |
|
| 1970 |
|
| 1979 |
|
| 1980 |
|
| 1982 |
|
| 1989 |
|
| 1990 |
|
| 1992 |
|
| 1993 |
|
| 1994 |
|
| 1995 |
|
| 1997 |
|
| 1998 |
|
| 2000 |
|
| 2004 |
|
| 2005 |
|
| 2006 |
|
| 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.
