condition mean min max 4 h after light 5.774850000000001 5.451630000000001 6.19914 8 h after light 5.82291 5.5347 6.04818 12 h after light 5.621553333333333 5.37932 5.8278 4 h after dark 5.724776666666667 5.54113 6.06418 8 h after dark 5.90669 5.62397 6.30492 12 h after dark 6.2880899999999995 6.1874199999999995 6.40923