| Value | Category | Cases | |
|---|---|---|---|
| 1 | I do this activity using a computer | 691 |
8.4%
|
| 2 | I do this activity using a cellphone | 3279 |
40%
|
| 3 | I don’t do this activity at all | 3498 |
42.6%
|
| 4 | I do this activity using both computer and cellphone | 735 |
9%
|
| Sysmiss | 16957 |