| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1 |
2.9%
|
|
| 2 | 1 |
2.9%
|
|
| 5 | 1 |
2.9%
|
|
| 7 | 2 |
5.7%
|
|
| 9 | 1 |
2.9%
|
|
| 10 | 1 |
2.9%
|
|
| 15 | 4 |
11.4%
|
|
| 17 | 1 |
2.9%
|
|
| 20 | 5 |
14.3%
|
|
| 25 | 1 |
2.9%
|
|
| 35 | 1 |
2.9%
|
|
| 38 | 1 |
2.9%
|
|
| 45 | 1 |
2.9%
|
|
| 46 | 1 |
2.9%
|
|
| 77 | Don't know | 2 |
5.7%
|
| 99 | Don't know | 11 |
31.4%
|
| Sysmiss | 6807 |