condition mean min max 4 h after light 5.61857 5.42694 5.76891 8 h after light 5.54525 5.37937 5.77473 12 h after light 5.36539 5.17506 5.4723 4 h after dark 5.289806666666667 4.95523 5.49124 8 h after dark 5.463923333333333 5.21061 5.6136099999999995 12 h after dark 5.321043333333333 5.2248 5.37217