| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. Less than 1 km | 2575 |
36.5%
|
| 2 | 2. 1 km to less than 3km | 2103 |
29.8%
|
| 3 | 3. 3 km to less than 5 km | 578 |
8.2%
|
| 4 | 4. 5 km or more | 545 |
7.7%
|
| 9 | 9. I don't know | 328 |
4.6%
|
| Sysmiss | 928 |
13.2%
|