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 4.341795 0.0 8.68359 12 h after light 3.67701 0.0 7.35402 2 h after dark 1.337815 0.0 2.67563 4 h after dark 0.000417127 0.0 0.000834254 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0