| Value | Category | Cases | |
|---|---|---|---|
| 1 | PTB | 20 |
0%
|
| 2 | EPTB | 2 |
0%
|
| 7 | Not applicable | 52629 |
98.8%
|
| 9 | Missing | 620 |
1.2%
|
| Sysmiss | 3 |