| Value |
Category |
Cases |
|
| 1 |
Very easy |
439 |
|
| 2 |
Easy |
996 |
|
| 3 |
Difficult |
2373 |
|
| 4 |
Very difficult |
665 |
|
| 77 |
Don't know |
1102 |
|
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.
