| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 5 |
4.1%
|
| -6 | Still in progress | 0 |
0%
|
| 1 | One week or less | 28 |
23%
|
| 2 | 14 |
11.5%
|
|
| 3 | 4 |
3.3%
|
|
| 4 | 35 |
28.7%
|
|
| 8 | 17 |
13.9%
|
|
| 9 | 1 |
0.8%
|
|
| 10 | 1 |
0.8%
|
|
| 12 | 1 |
0.8%
|
|
| 14 | 3 |
2.5%
|
|
| 15 | 4 |
3.3%
|
|
| 30 | 8 |
6.6%
|
|
| 45 | 1 |
0.8%
|
|
| Sysmiss | 470 |