| Value | Category | Cases | |
|---|---|---|---|
| 0 | Less than 10g. | 1430 |
13.9%
|
| 1 | 20-30g. | 4840 |
47%
|
| 2 | 30-50g. | 2459 |
23.9%
|
| 3 | 50-100g | 928 |
9%
|
| 4 | More than 100g | 643 |
6.2%
|
| Sysmiss | 392 |