condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.052926 0.0 0.105852 12 h after light 0.02866545 0.0 0.0573309 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0