| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 22 |
19.3%
|
| 0 | Less than one day | 0 |
0%
|
| 2 | 3 |
2.6%
|
|
| 3 | 4 |
3.5%
|
|
| 4 | 2 |
1.8%
|
|
| 5 | 16 |
14%
|
|
| 6 | 3 |
2.6%
|
|
| 7 | 20 |
17.5%
|
|
| 8 | 1 |
0.9%
|
|
| 9 | 2 |
1.8%
|
|
| 10 | 3 |
2.6%
|
|
| 14 | 9 |
7.9%
|
|
| 15 | 2 |
1.8%
|
|
| 20 | 1 |
0.9%
|
|
| 21 | 2 |
1.8%
|
|
| 28 | 1 |
0.9%
|
|
| 30 | 11 |
9.6%
|
|
| 35 | 1 |
0.9%
|
|
| 40 | 1 |
0.9%
|
|
| 45 | 1 |
0.9%
|
|
| 47 | 2 |
1.8%
|
|
| 60 | 2 |
1.8%
|
|
| 70 | 1 |
0.9%
|
|
| 90 | 3 |
2.6%
|
|
| 160 | 1 |
0.9%
|
|
| Sysmiss | 888 |