| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 10 |
8.8%
|
| 1 | Between 1 days and 60 days | 46 |
40.7%
|
| 2 | Between 61 days and 120 days | 32 |
28.3%
|
| 3 | Between 121 days and 180 days | 19 |
16.8%
|
| 4 | Between 181 days and 365 days | 4 |
3.5%
|
| 5 | Over 365 days | 2 |
1.8%
|
| Sysmiss | 983 |