Value |
Category |
-9 |
Don't know (SPONTANEOUS) |
1 |
LESS THAN ONE HOUR |
2 |
|
4 |
|
6 |
|
8 |
|
9 |
|
10 |
|
12 |
|
15 |
|
20 |
|
23 |
|
24 |
|
144 |
|
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.