condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0255548 0.0 0.0766644 12 h after light 0.016541966666666668 0.0 0.0496259 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