condition mean min max 0 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 4 h after dark 1.435675 0.0 2.87135 8 h after dark 0.0 0.0 0.0 12 h after dark 1.422415 0.0 2.84483