Value |
Category |
-9 |
don't know |
1 |
less than one hour |
2 |
|
3 |
|
4 |
|
5 |
|
6 |
|
7 |
|
8 |
|
10 |
|
12 |
|
15 |
|
20 |
|
24 |
|
48 |
|
72 |
|
168 |
|
192 |
|
240 |
|
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.