| Value |
Category |
| -99 |
-99.Don't know |
| -97 |
-97.STOPS not exist |
| -55 |
-55.Missing |
| 1 |
1.Excelent |
| 2 |
2.Good |
| 3 |
3.Satisfactory |
| 5 |
5.Unsatisfactory |
| 6 |
6.Very bad |
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.