| Value |
Category |
| 1 |
a. Very difficult |
| 2 |
b. somewhat difficult |
| 3 |
c. Somewhat easy |
| 4 |
d. Very easy. |
| 5 |
e. Do not know |
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.
