| Value | Category | Cases | |
|---|---|---|---|
| 1 | less than 500 mtrs | 169259 |
61.2%
|
| 2 | 500 mtrs to 1 km | 52937 |
19.2%
|
| 3 | 1-2 km | 17929 |
6.5%
|
| 4 | 2-3 km | 6802 |
2.5%
|
| 5 | greater than 3 km | 19964 |
7.2%
|
| 6 | not known | 9518 |
3.4%
|