| Value | Category | Cases | |
|---|---|---|---|
| 1 | AC | 72 |
69.9%
|
| 2 | DC | 19 |
18.4%
|
| 3 | Portable | 6 |
5.8%
|
| 888 | Don?t know | 6 |
5.8%
|
| Sysmiss | 178 |