| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
0.8%
|
| 0 | Less than one day | 1 |
0.8%
|
| 1 | 4 |
3.1%
|
|
| 2 | 19 |
14.5%
|
|
| 3 | 12 |
9.2%
|
|
| 4 | 8 |
6.1%
|
|
| 5 | 17 |
13%
|
|
| 6 | 5 |
3.8%
|
|
| 7 | 12 |
9.2%
|
|
| 8 | 1 |
0.8%
|
|
| 10 | 26 |
19.8%
|
|
| 14 | 7 |
5.3%
|
|
| 15 | 4 |
3.1%
|
|
| 20 | 1 |
0.8%
|
|
| 21 | 1 |
0.8%
|
|
| 22 | 1 |
0.8%
|
|
| 25 | 3 |
2.3%
|
|
| 28 | 1 |
0.8%
|
|
| 30 | 1 |
0.8%
|
|
| 50 | 1 |
0.8%
|
|
| 67 | 1 |
0.8%
|
|
| 70 | 1 |
0.8%
|
|
| 80 | 1 |
0.8%
|
|
| 95 | 1 |
0.8%
|
|
| 120 | 1 |
0.8%
|
|
| Sysmiss | 115 |