| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 17 |
8.7%
|
| -6 | Still in progress | 0 |
0%
|
| 1 | One week or less | 139 |
71.3%
|
| 2 | 10 |
5.1%
|
|
| 3 | 3 |
1.5%
|
|
| 4 | 18 |
9.2%
|
|
| 5 | 1 |
0.5%
|
|
| 6 | 1 |
0.5%
|
|
| 7 | 1 |
0.5%
|
|
| 8 | 2 |
1%
|
|
| 10 | 2 |
1%
|
|
| 15 | 1 |
0.5%
|
|
| Sysmiss | 1105 |