| Value |
Category |
| 20 |
|
| 25 |
|
| 41 |
|
| 50 |
|
| 65 |
|
| 75 |
|
| 77 |
refused |
| 88 |
don't know |
| 99 |
missing |
| 130 |
|
| 140 |
|
| 175 |
|
| 230 |
|
| 320 |
|
| 500 |
|
| 600 |
|
| 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.