| Value | Category | Cases | |
|---|---|---|---|
| 1 | NEVER | 2879 |
42.1%
|
| 2 | SELDOM | 1317 |
19.3%
|
| 3 | SOMETIME | 2280 |
33.3%
|
| 4 | OFTEN | 361 |
5.3%
|
| Sysmiss | 3 |