| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 |
0%
|
| -9 | Don't know (spontaneous) | 1 |
0.3%
|
| 1 | Yes | 195 |
54.5%
|
| 2 | No, but expect to receive them in the next 3 months | 10 |
2.8%
|
| 3 | No | 152 |
42.5%
|
| Sysmiss | 402 |