| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. Less than 1 km | 1431 |
20.3%
|
| 2 | 2. 1 km to less than 3km | 1338 |
19%
|
| 3 | 3. 3 km to less than 5 km | 386 |
5.5%
|
| 4 | 4. 5 km or more | 274 |
3.9%
|
| 9 | 9. I don't know | 2700 |
38.3%
|
| Sysmiss | 928 |
13.2%
|