| Value |
Category |
| 20 |
|
| 25 |
|
| 30 |
|
| 36 |
|
| 40 |
|
| 77 |
refused |
| 88 |
don't know |
| 99 |
missing |
| 100 |
|
| 105 |
|
| 175 |
|
| 250 |
|
| 306 |
|
| 896 |
|
| 1600 |
|
| 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.