| Value |
Category |
| 2003 |
|
| 2004 |
|
| 2005 |
|
| 2006 |
|
| 2007 |
|
| 2008 |
|
| 8888 |
sin información en cuestionario |
| 9898 |
no existe información en el carnet |
| 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.