| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 1 year ago | 3 |
30%
|
| 2 | 1-2 years ago | 3 |
30%
|
| 3 | 3-5 years ago | 3 |
30%
|
| 4 | More than 5 years ago | 1 |
10%
|
| Sysmiss | 3506 |