| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 2 |
3.6%
|
| 1 | Less than one day | 2 |
3.6%
|
| 2 | 1 |
1.8%
|
|
| 7 | 3 |
5.5%
|
|
| 10 | 1 |
1.8%
|
|
| 14 | 6 |
10.9%
|
|
| 20 | 1 |
1.8%
|
|
| 21 | 3 |
5.5%
|
|
| 28 | 2 |
3.6%
|
|
| 30 | 12 |
21.8%
|
|
| 52 | 1 |
1.8%
|
|
| 60 | 5 |
9.1%
|
|
| 90 | 2 |
3.6%
|
|
| 120 | 4 |
7.3%
|
|
| 150 | 2 |
3.6%
|
|
| 180 | 3 |
5.5%
|
|
| 240 | 1 |
1.8%
|
|
| 300 | 1 |
1.8%
|
|
| 365 | 3 |
5.5%
|
|
| Sysmiss | 545 |