condition mean min max 0 h after light 5.037455 4.72597 5.34894 4 h after light 2.357545 1.97204 2.74305 8 h after light 1.89975 1.64536 2.15414 4 h after dark 8.291145 7.31581 9.26648 8 h after dark 5.37807 4.08467 6.67147 12 h after dark 3.58191 3.38241 3.78141