| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 6 |
6.1%
|
| -7 | Does not apply | 2 |
2%
|
| 1 | One day or less | 5 |
5.1%
|
| 2 | 4 |
4%
|
|
| 3 | 12 |
12.1%
|
|
| 4 | 3 |
3%
|
|
| 5 | 9 |
9.1%
|
|
| 6 | 1 |
1%
|
|
| 7 | 12 |
12.1%
|
|
| 8 | 2 |
2%
|
|
| 10 | 13 |
13.1%
|
|
| 12 | 1 |
1%
|
|
| 15 | 2 |
2%
|
|
| 17 | 1 |
1%
|
|
| 20 | 7 |
7.1%
|
|
| 22 | 1 |
1%
|
|
| 25 | 7 |
7.1%
|
|
| 27 | 1 |
1%
|
|
| 30 | 7 |
7.1%
|
|
| 35 | 1 |
1%
|
|
| 45 | 2 |
2%
|
|
| Sysmiss | 433 |