| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
1.1%
|
| 1 | Less than one day | 1 |
1.1%
|
| 3 | 1 |
1.1%
|
|
| 12 | 1 |
1.1%
|
|
| 15 | 6 |
6.6%
|
|
| 16 | 1 |
1.1%
|
|
| 18 | 1 |
1.1%
|
|
| 20 | 2 |
2.2%
|
|
| 21 | 5 |
5.5%
|
|
| 27 | 1 |
1.1%
|
|
| 28 | 1 |
1.1%
|
|
| 30 | 21 |
23.1%
|
|
| 40 | 2 |
2.2%
|
|
| 45 | 22 |
24.2%
|
|
| 60 | 9 |
9.9%
|
|
| 70 | 1 |
1.1%
|
|
| 90 | 6 |
6.6%
|
|
| 100 | 2 |
2.2%
|
|
| 120 | 2 |
2.2%
|
|
| 150 | 1 |
1.1%
|
|
| 180 | 2 |
2.2%
|
|
| 240 | 1 |
1.1%
|
|
| 340 | 1 |
1.1%
|
|
| Sysmiss | 267 |