| Value |
Category |
Cases |
|
| -9 |
Don't know (spontaneous) |
0 |
|
| 1 |
Very much difficult |
21 |
|
| 2 |
Moderately difficult |
23 |
|
| 3 |
Somewhat difficult |
18 |
|
| 4 |
Not difficult at all |
12 |
|
| Sysmiss |
|
99 |
|
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.
