condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.15476 0.0 0.46428 12 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.28434066666666663 0.0 0.853022 12 h after dark 0.0 0.0 0.0