| Value | Category | Cases | |
|---|---|---|---|
| 0 | 183 |
90.6%
|
|
| 1 | 13 |
6.4%
|
|
| 2 | 1 |
0.5%
|
|
| 12 | 1 |
0.5%
|
|
| 98 | Don't know | 1 |
0.5%
|
| a | 3 |
1.5%
|
|
| Sysmiss | 3 |