| Value | Category | Cases | |
|---|---|---|---|
| 1 | COMMONLY USED | 428 |
17.7%
|
| 2 | SOMETIMES USED | 385 |
15.9%
|
| 3 | RARELY USED | 349 |
14.4%
|
| 8 | NO USE | 395 |
16.3%
|
| 9 | DON'T KNOW (KN) | 861 |
35.6%
|
| Sysmiss | 370 |