condition mean min max 4 h after light 3.8472799999999996 3.34433 4.35023 8 h after light 2.9177150000000003 2.66723 3.1682 12 h after light 3.2115400000000003 2.77775 3.64533 4 h after dark 5.532769999999999 4.65926 6.40628 8 h after dark 5.0038800000000005 4.78156 5.2262 12 h after dark 4.97056 4.81614 5.12498