| Value | Category | Cases | |
|---|---|---|---|
| 1 | AC | 87 |
63.5%
|
| 2 | DC | 29 |
21.2%
|
| 3 | Portable | 12 |
8.8%
|
| 888 | Don?t know | 9 |
6.6%
|
| Sysmiss | 144 |