| Value | Category | Cases | |
|---|---|---|---|
| 1 | Day | 8689 |
83.2%
|
| 2 | Week | 165 |
1.6%
|
| 3 | Month | 960 |
9.2%
|
| 4 | Less than one year | 234 |
2.2%
|
| 5 | One year or more | 392 |
3.8%
|
| Sysmiss | 61507 |