| Value | Category | Cases | |
|---|---|---|---|
| 1 | my whole life | 75 |
5%
|
| 2 | less than one year | 70 |
4.6%
|
| 3 | 1-3 years | 146 |
9.7%
|
| 4 | 3-9 years | 279 |
18.5%
|
| 5 | more than 10 years | 936 |
62.2%
|
| Sysmiss | Can't reveal | 0 | |
| Sysmiss | Don't know | 0 | |
| Sysmiss | Not applicable | 0 | |
| Sysmiss | Others | 0 | |
| Sysmiss | 2697 |