condition mean min max 4 h after light 977.2020695 817.266572 1137.137567 8 h after light 1142.7184035 1092.354585 1193.082222 12 h after light 1724.8371570000002 939.616672 2510.057642 4 h after dark 3217.520276 2796.246497 3638.794055 8 h after dark 2388.7036630000002 1840.572592 2936.834734 12 h after dark 2491.085709 2491.085709 2491.085709