| Value | Category | Cases | |
|---|---|---|---|
| 0 | 13 |
76.5%
|
|
| 3 | 1 |
5.9%
|
|
| 8 | 1 |
5.9%
|
|
| 18 | 1 |
5.9%
|
|
| 20 | 1 |
5.9%
|
|
| 998 | 98. Don't know | 0 |
0%
|
| 9996 | 96. Not applicable | 0 |
0%
|
| 9998 | 98. Don't know | 0 |
0%
|
| Sysmiss | 290 |