| Value | Category | Cases | |
|---|---|---|---|
| -9 | missing | 0 |
0%
|
| -8 | dont know | 0 |
0%
|
| -7 | na | 0 |
0%
|
| 1 | 0-1 mo. | 16 |
3.4%
|
| 2 | 1-6 mo. | 47 |
10%
|
| 3 | 7-12 mo. | 32 |
6.8%
|
| 4 | 1-2 years | 86 |
18.3%
|
| 5 | 2+ years | 288 |
61.4%
|
| Sysmiss | 144 |