| Value |
Category |
| 0 |
none |
| 77 |
refused |
| 80 |
|
| 88 |
don't know |
| 99 |
missing |
| 150 |
|
| 220 |
|
| 240 |
|
| 300 |
|
| 450 |
|
| 500 |
|
| 600 |
|
| 840 |
|
| 1000 |
|
| 2000 |
|
| 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.