| Value | Category | Cases | |
|---|---|---|---|
| 00 | No credit | 8247 |
3.1%
|
| 11 | Partial credit | 3918 |
1.5%
|
| 12 | Partial credit | 509 |
0.2%
|
| 21 | Full credit | 3301 |
1.2%
|
| 97 | N/A | 252220 |
94%
|
| 99 | Missing | 3128 |