| Value | Category | Cases | |
|---|---|---|---|
| 1 | AC | 12 |
57.1%
|
| 2 | DC | 4 |
19%
|
| 3 | Portable | 3 |
14.3%
|
| 888 | Don?t know | 2 |
9.5%
|
| Sysmiss | 260 |