| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes, one | 1901 |
32.8%
|
| 2 | Yes, both | 2766 |
47.7%
|
| 3 | Neither | 1099 |
19%
|
| 9 | 27 |
0.5%
|
|
| Sysmiss | 14172 |