| Value |
Category |
| 1 |
(1) Not useful at all |
| 2 |
(2) |
| 3 |
(3) |
| 4 |
(4) |
| 5 |
(5) |
| 6 |
(6) Very Useful |
| 7 |
N/A |
| 8 |
Invalid |
| 9 |
Miss |
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.