| Value | Category | Cases | |
|---|---|---|---|
| 1 | 20 cm x 20 cm or smaller | 227 |
38.3%
|
| 2 | 40 cm x 40 cm | 179 |
30.2%
|
| 3 | 50 cm x 100 cm | 147 |
24.8%
|
| 4 | 75 x 150 or larger | 35 |
5.9%
|
| 555 | other | 4 |
0.7%
|
| Sysmiss | 1317 |