| Value |
Category |
Cases |
|
| -9 |
Don't know (spontaneous) |
749 |
|
| -7 |
Does not apply (spontaneous) |
284 |
|
| 1 |
Very easy |
103 |
|
| 2 |
Easy |
928 |
|
| 3 |
Difficult |
570 |
|
| 4 |
Very difficult |
321 |
|
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.
