| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 27 |
22.3%
|
| -5 | Refund still outstanding | 6 |
5%
|
| 1 | One week or less | 8 |
6.6%
|
| 2 | 2 |
1.7%
|
|
| 3 | 7 |
5.8%
|
|
| 4 | 14 |
11.6%
|
|
| 5 | 4 |
3.3%
|
|
| 6 | 3 |
2.5%
|
|
| 8 | 13 |
10.7%
|
|
| 12 | 5 |
4.1%
|
|
| 15 | 1 |
0.8%
|
|
| 18 | 1 |
0.8%
|
|
| 20 | 5 |
4.1%
|
|
| 24 | 1 |
0.8%
|
|
| 30 | 12 |
9.9%
|
|
| 32 | 1 |
0.8%
|
|
| 48 | 1 |
0.8%
|
|
| 60 | 9 |
7.4%
|
|
| 90 | 1 |
0.8%
|
|
| Sysmiss | 881 |