| Value | Category | Cases | |
|---|---|---|---|
| 1 | AC | 98 |
66.7%
|
| 2 | DC | 30 |
20.4%
|
| 3 | Portable | 7 |
4.8%
|
| 888 | Don?t know | 12 |
8.2%
|
| Sysmiss | 134 |