| Value | Category | Cases | |
|---|---|---|---|
| 1 | AC | 9 |
52.9%
|
| 2 | DC | 2 |
11.8%
|
| 3 | Portable | 2 |
11.8%
|
| 888 | Don?t know | 4 |
23.5%
|
| Sysmiss | 264 |