| Value |
Category |
| -9999 |
Dont know |
| -8888 |
Not applicable |
| -7777 |
Skipped |
| -6666 |
Missing |
| 1 |
Low |
| 2 |
Satisfactory |
| 3 |
High |
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.