| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. telephone | 500 |
11.4%
|
| 2 | 2. fax | 0 |
0%
|
| 3 | 3. email | 1997 |
45.6%
|
| 4 | 4. cellphone | 1881 |
43%
|
| Sysmiss | 160 |