| Value |
Category |
Cases |
|
| -9 |
Don't know (spontaneous) |
4 |
|
| 1000 |
|
2 |
|
| 1500 |
|
1 |
|
| 2500 |
|
1 |
|
| 3500 |
|
1 |
|
| 4500 |
|
1 |
|
| 5000 |
|
1 |
|
| 18000 |
|
1 |
|
| Sysmiss |
|
138 |
|
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.
