| Value |
Category |
| 1 |
Less than 30 metres |
| 2 |
30 - 50 metres |
| 3 |
51 - 100 metres |
| 4 |
geater than 100 metres |
| 7 |
|
| 9 |
|
| Sysmiss |
|
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.
