| Value |
Category |
| 1 |
other resource books |
| 2 |
student edition of textbook |
| 3 |
teacher edition of textbook |
| 4 |
|
| 5 |
|
| 6 |
|
| 8 |
noz 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.