| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| -5 | Refund still outstanding | 3 |
15%
|
| 1 | One week or less | 1 |
5%
|
| 3 | 1 |
5%
|
|
| 4 | 3 |
15%
|
|
| 6 | 1 |
5%
|
|
| 8 | 3 |
15%
|
|
| 10 | 1 |
5%
|
|
| 12 | 1 |
5%
|
|
| 15 | 3 |
15%
|
|
| 30 | 2 |
10%
|
|
| 38 | 1 |
5%
|
|
| Sysmiss | 128 |