| Value | Category | Cases | |
|---|---|---|---|
| 1 | No I don’t own or use one | 0 |
0%
|
| 2 | I don’t own one but use someone else’s | 0 |
0%
|
| 3 | I own one but don’t use it | 1 |
100%
|
| 4 | Yes, I do own one and use it. | 0 |
0%
|
| Sysmiss | 1999 |