| Value | Description |
|---|---|
| 1 | Frame height filled by head or shoulders-to-top-of-head. |
| 2 | Frame height filled by chest-to-top-of-head or thigh-to-top-of-head. |
| 3 | At least 80% of the frame height filled by knees-to-top-of-head or feet-to-top-of-head. |
| 4 | Full body fills between 50% to 80% of the frame height. |
| 5 | Full body fills 50% of the frame height or less. |