| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 2 |
1.4%
|
| 1 | Less than one day | 1 |
0.7%
|
| 3 | 2 |
1.4%
|
|
| 5 | 2 |
1.4%
|
|
| 6 | 1 |
0.7%
|
|
| 7 | 7 |
5%
|
|
| 10 | 3 |
2.1%
|
|
| 14 | 10 |
7.1%
|
|
| 15 | 14 |
10%
|
|
| 16 | 2 |
1.4%
|
|
| 19 | 3 |
2.1%
|
|
| 20 | 2 |
1.4%
|
|
| 21 | 14 |
10%
|
|
| 25 | 7 |
5%
|
|
| 30 | 46 |
32.9%
|
|
| 31 | 9 |
6.4%
|
|
| 60 | 7 |
5%
|
|
| 62 | 1 |
0.7%
|
|
| 90 | 5 |
3.6%
|
|
| 120 | 2 |
1.4%
|
|
| Sysmiss | 482 |