condition mean min max 0 h after light 2.57254 2.37693 2.76815 4 h after light 49.9547 33.1408 66.7686 8 h after light 49.8451 46.655 53.0352 4 h after dark 10.367135 7.28217 13.4521 8 h after dark 7.23349 6.77496 7.69202 12 h after dark 4.375095 2.6657 6.08449