| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 118 |
11.4%
|
| 2 | No | 904 |
87.3%
|
| 4 | 6 |
0.6%
|
|
| 9 | 8 |
0.8%
|
|
| 0 | NR | 1956 | |
| Sysmiss | 8 |