| Value | Category | Cases | |
|---|---|---|---|
| 0 | 2 |
11.1%
|
|
| 1 | 5 |
27.8%
|
|
| 2 | 3 |
16.7%
|
|
| 3 | 1 |
5.6%
|
|
| 6 | 2 |
11.1%
|
|
| 21 | 1 |
5.6%
|
|
| 77 | Don't know | 2 |
11.1%
|
| 88 | No applicable | 2 |
11.1%
|
| 99 | Missing | 0 |
0%
|
| Sysmiss | 4724 |