condition mean min max 4 h after light 6.128643333333334 3.98785 9.93511 8 h after light 3.6514409999999997 0.795473 6.63641 12 h after light 3.83234 2.14776 6.59446 4 h after dark 9.195003333333334 7.16802 11.6786 8 h after dark 8.674876666666666 6.41064 10.0884 12 h after dark 6.939690000000001 6.17623 7.95983