| Value | Category | Cases | |
|---|---|---|---|
| 1 | I do this activity using a computer | 291 |
3.1%
|
| 2 | I do this activity using a cellphone | 436 |
4.6%
|
| 3 | I don’t do this activity at all | 8564 |
90.6%
|
| 4 | I do this activity using both computer and cellphone | 157 |
1.7%
|
| Sysmiss | 15660 |