| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 1 month ago | 218 |
11.7%
|
| 2 | 1-3 months ago | 206 |
11.1%
|
| 3 | 3-6 months ago | 152 |
8.2%
|
| 4 | 6-12 months ago | 148 |
8%
|
| 5 | Longer than 12 months ago or never weighed | 639 |
34.4%
|
| 88 | Unsure | 492 |
26.5%
|
| 99 | Refused | 1 |
0.1%
|