| Value | Category | Cases | |
|---|---|---|---|
| 1 | 20cm x 20cm or less | 109 |
53.7%
|
| 2 | 40cm x 40cm | 54 |
26.6%
|
| 3 | 50cm x 100cm | 34 |
16.7%
|
| 4 | 75cm x 150cm or more | 6 |
3%
|
| Sysmiss | 4 |