| Value |
Category |
| 0 |
Unprotected |
| 1 |
Short term protection |
| 2 |
Long term protection |
| 8 |
Undetermined |
| 9 |
Not tested |
| 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.