| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 0 | Less than one day | 1 |
0.9%
|
| 1 | 8 |
7.1%
|
|
| 2 | 14 |
12.4%
|
|
| 3 | 15 |
13.3%
|
|
| 4 | 9 |
8%
|
|
| 5 | 7 |
6.2%
|
|
| 6 | 2 |
1.8%
|
|
| 7 | 13 |
11.5%
|
|
| 8 | 5 |
4.4%
|
|
| 10 | 15 |
13.3%
|
|
| 12 | 3 |
2.7%
|
|
| 14 | 1 |
0.9%
|
|
| 15 | 7 |
6.2%
|
|
| 16 | 1 |
0.9%
|
|
| 20 | 1 |
0.9%
|
|
| 25 | 1 |
0.9%
|
|
| 28 | 1 |
0.9%
|
|
| 47 | 1 |
0.9%
|
|
| 50 | 1 |
0.9%
|
|
| 60 | 1 |
0.9%
|
|
| 65 | 1 |
0.9%
|
|
| 67 | 1 |
0.9%
|
|
| 70 | 2 |
1.8%
|
|
| 80 | 1 |
0.9%
|
|
| 90 | 1 |
0.9%
|
|
| Sysmiss | 247 |