| Value | Category | Cases | |
|---|---|---|---|
| 1 | By SMS or text message | 403 |
48.8%
|
| 2 | By a phone call with a recorded voice | 349 |
42.3%
|
| 3 | Neither | 15 |
1.8%
|
| 4 | Both/Either one | 39 |
4.7%
|
| 8 | Don't know | 14 |
1.7%
|
| 9 | Refused | 5 |
0.6%
|
| Sysmiss | 179 |