| Value | Category | Cases | |
|---|---|---|---|
| 1 | Stage 1 | 7 |
21.2%
|
| 2 | Stage 2 | 8 |
24.2%
|
| 3 | Stage 3 | 14 |
42.4%
|
| 4 | Stage 4 | 4 |
12.1%
|
| Sysmiss | 1956 |