| Value | Category | Cases | |
|---|---|---|---|
| 1 | Within the past 30 days | 135 |
63.1%
|
| 2 | Within the past 31-90 days | 41 |
19.2%
|
| 3 | Within the past 4-6 months | 13 |
6.1%
|
| 4 | More than 6 months ago | 3 |
1.4%
|
| 5 | Never | 22 |
10.3%
|
| Sysmiss | 65 |