condition mean min max 4 h after light 10.13379 8.733635 11.533945 8 h after light 10.456468000000001 9.838465 11.074471 12 h after light 8.8847515 8.322675 9.446828 4 h after dark 10.430829 10.430829 10.430829 8 h after dark 11.089357 11.049034 11.12968 12 h after dark 11.341245 11.341245 11.341245