| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 200 metres | 153 |
15.3%
|
| 2 | 201 - 500 metres | 36 |
3.6%
|
| 3 | 501 metres - one kilometre | 24 |
2.4%
|
| 4 | More than one kilometre | 4 |
0.4%
|
| 5 | Do not know | 3 |
0.3%
|
| 8 | Not applicable | 779 |
77.9%
|
| 9 | Unspecified | 1 |
0.1%
|