| Value | Category | Cases | |
|---|---|---|---|
| 1 | < 1 month | 122 |
2.6%
|
| 2 | 1 month < 3 months | 227 |
4.9%
|
| 3 | 3 month < 6 months | 211 |
4.6%
|
| 4 | 6 months < 1 year | 349 |
7.6%
|
| 5 | 1 year < 2 years | 777 |
16.9%
|
| 6 | 2 years or more | 2925 |
63.4%
|
| Sysmiss | 35601 |