condition mean min max 4 h after light 0.8795360021999999 6.6e-09 1.66984 8 h after light 0.20790306666666666 0.0 0.531956 12 h after light 0.5911858 0.0444794 1.28134 4 h after dark 1.0140423333333333 0.382534 1.88495 8 h after dark 1.045445 0.401675 1.37486 12 h after dark 1.0512193333333333 0.822069 1.43271