| Value |
Category |
Cases |
|
| -9 |
Don't know (spontaneous) |
12 |
|
| 10 |
|
1 |
|
| 15 |
|
4 |
|
| 20 |
|
7 |
|
| 30 |
|
23 |
|
| 45 |
|
2 |
|
| 50 |
|
4 |
|
| Sysmiss |
|
449 |
|
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.
