condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 2 h after dark 0.0406903 0.0 0.0813806 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0394307 0.0 0.0788614 12 h after dark 0.0 0.0 0.0