| Value | Category | Cases | |
|---|---|---|---|
| 1 | AC | 11 |
61.1%
|
| 2 | DC | 2 |
11.1%
|
| 3 | Portable | 2 |
11.1%
|
| 888 | Don?t know | 3 |
16.7%
|
| Sysmiss | 263 |