| Value |
Category |
| 0 |
N.A. no silent reading |
| 1 |
0-10 mins |
| 2 |
11-15 mins |
| 3 |
16-20 mins |
| 4 |
21-30 mins |
| 5 |
31-45 mins |
| 6 |
46-60 mins |
| 7 |
more than 60 mins |
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.