| Value |
Category |
| 1 |
unrestricted use |
| 2 |
restricted use |
| 3 |
calculators are not permitted |
| 8 |
not admin. |
| 9 |
omitted |
| 11 |
.A |
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.