| Value |
Category |
| -9 |
DON’T KNOW (SPONTANEOUS) |
| 1 |
LESS THAN ONE HOUR |
| 2 |
|
| 3 |
|
| 4 |
|
| 5 |
|
| 6 |
|
| 8 |
|
| 10 |
|
| 12 |
|
| 16 |
|
| 24 |
|
| 36 |
|
| 40 |
|
| 48 |
|
| 60 |
|
| 72 |
|
| 96 |
|
| 98 |
|
| 100 |
|
| 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.