| Value | Category | Cases | |
|---|---|---|---|
| 1 | available separately | 569 |
8.8%
|
| 2 | available but integrated with other devices | 3730 |
57.4%
|
| 3 | available separately and also integrated with other devices | 663 |
10.2%
|
| 4 | Not available | 1519 |
23.4%
|
| 5 | I don't know | 19 |
0.3%
|