| Value | Category | Cases | |
|---|---|---|---|
| 1 | COMMONLY USED | 419 |
16.7%
|
| 2 | SOMETIMES USED | 445 |
17.7%
|
| 3 | RARELY USED | 491 |
19.5%
|
| 8 | NO USE | 443 |
17.6%
|
| 9 | DON'T KNOW (KN) | 714 |
28.4%
|
| Sysmiss | 276 |