| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 9 |
4.3%
|
| -5 | Refund still outstanding | 1 |
0.5%
|
| 1 | One week or less | 5 |
2.4%
|
| 2 | 15 |
7.1%
|
|
| 3 | 72 |
34.1%
|
|
| 4 | 55 |
26.1%
|
|
| 5 | 3 |
1.4%
|
|
| 6 | 2 |
0.9%
|
|
| 7 | 2 |
0.9%
|
|
| 8 | 4 |
1.9%
|
|
| 10 | 2 |
0.9%
|
|
| 14 | 1 |
0.5%
|
|
| 15 | 1 |
0.5%
|
|
| 18 | 2 |
0.9%
|
|
| 20 | 4 |
1.9%
|
|
| 21 | 21 |
10%
|
|
| 25 | 1 |
0.5%
|
|
| 30 | 10 |
4.7%
|
|
| 100 | 1 |
0.5%
|
|
| Sysmiss | 191 |