| Value | Category | Cases | |
|---|---|---|---|
| 1 | 5 |
4.5%
|
|
| 2 | 5 |
4.5%
|
|
| 3 | 3 |
2.7%
|
|
| 4 | 5 |
4.5%
|
|
| 5 | 2 |
1.8%
|
|
| 6 | 2 |
1.8%
|
|
| 7 | 1 |
0.9%
|
|
| 8 | 2 |
1.8%
|
|
| 10 | 3 |
2.7%
|
|
| 11 | 1 |
0.9%
|
|
| 14 | 1 |
0.9%
|
|
| 15 | 3 |
2.7%
|
|
| 20 | 3 |
2.7%
|
|
| 25 | 2 |
1.8%
|
|
| 30 | 3 |
2.7%
|
|
| 77 | Don't know | 8 |
7.1%
|
| 88 | Don't know | 1 |
0.9%
|
| 99 | Don't know | 62 |
55.4%
|
| Sysmiss | 6730 |