| Value | Category | Cases | |
|---|---|---|---|
| 1 | Days (if <7 days) | 1 |
0.7%
|
| 2 | Weeks (if >= 7 days and <4 weeks) | 6 |
4.4%
|
| 3 | Months (if >=4 weeks and less than 1 year) | 40 |
29.6%
|
| 4 | Years (if 1 year or longer) | 86 |
63.7%
|
| 98 | Don’t know | 1 |
0.7%
|
| 99 | Refused to answer | 1 |
0.7%
|
| Sysmiss | 9407 |