| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 12 |
6.9%
|
| -5 | Refund still outstanding | 1 |
0.6%
|
| 1 | One week or less | 4 |
2.3%
|
| 2 | 1 |
0.6%
|
|
| 3 | 9 |
5.2%
|
|
| 4 | 19 |
10.9%
|
|
| 5 | 11 |
6.3%
|
|
| 6 | 15 |
8.6%
|
|
| 7 | 3 |
1.7%
|
|
| 8 | 58 |
33.3%
|
|
| 9 | 3 |
1.7%
|
|
| 10 | 11 |
6.3%
|
|
| 11 | 1 |
0.6%
|
|
| 12 | 19 |
10.9%
|
|
| 25 | 1 |
0.6%
|
|
| 30 | 4 |
2.3%
|
|
| 90 | 2 |
1.1%
|
|
| Sysmiss | 131 |