| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 8 |
17%
|
| 0 | Less than one day | 1 |
2.1%
|
| 2 | 1 |
2.1%
|
|
| 4 | 1 |
2.1%
|
|
| 5 | 2 |
4.3%
|
|
| 6 | 1 |
2.1%
|
|
| 7 | 2 |
4.3%
|
|
| 10 | 1 |
2.1%
|
|
| 12 | 1 |
2.1%
|
|
| 13 | 1 |
2.1%
|
|
| 14 | 1 |
2.1%
|
|
| 15 | 6 |
12.8%
|
|
| 16 | 1 |
2.1%
|
|
| 20 | 2 |
4.3%
|
|
| 21 | 1 |
2.1%
|
|
| 25 | 4 |
8.5%
|
|
| 30 | 7 |
14.9%
|
|
| 32 | 1 |
2.1%
|
|
| 35 | 1 |
2.1%
|
|
| 60 | 2 |
4.3%
|
|
| 75 | 1 |
2.1%
|
|
| 120 | 1 |
2.1%
|
|
| Sysmiss | 1369 |