condition mean min max 4 h after light 0.5462015 0.472871 0.619532 8 h after light 0.393697 0.270278 0.517116 12 h after light 0.5879945 0.562956 0.613033 4 h after dark 0.45606749999999996 0.376315 0.53582 8 h after dark 0.2775685 0.268514 0.286623 12 h after dark 0.613194 0.610042 0.616346