condition mean min max 0 h after light 3.3276700000000003 3.0108 3.64454 4 h after light 4.362355 2.8448 5.87991 8 h after light 9.25685 8.93617 9.57753 4 h after dark 4.81728 3.44982 6.18474 8 h after dark 3.84783 3.45947 4.23619 12 h after dark 1.922765 1.71574 2.12979