| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| -6 | Still in progress | 5 |
2%
|
| 1 | One week or less | 142 |
55.5%
|
| 2 | 57 |
22.3%
|
|
| 3 | 26 |
10.2%
|
|
| 4 | 16 |
6.3%
|
|
| 5 | 9 |
3.5%
|
|
| 8 | 1 |
0.4%
|
|
| Sysmiss | 1066 |