| Value | Category | Cases | |
|---|---|---|---|
| 0 | 323 |
94.2%
|
|
| 1 | 1 |
0.3%
|
|
| 2 | 1 |
0.3%
|
|
| 12 | 3 |
0.9%
|
|
| 99 | Unspecified | 15 |
4.4%
|
| Sysmiss | 1601 |