| Value | Category | Cases | |
|---|---|---|---|
| 1 | PTB | 537 |
1%
|
| 2 | EPTB | 55 |
0.1%
|
| 7 | Not applicable | 52555 |
98.7%
|
| 9 | Missing | 124 |
0.2%
|
| Sysmiss | 3 |