condition mean min max 0 h after light 5.4813600000000005 5.46628 5.49644 4 h after light 4.2879950000000004 3.95268 4.62331 8 h after light 4.422165 4.28942 4.55491 4 h after dark 7.593135 7.49426 7.69201 8 h after dark 6.84743 5.96971 7.72515 12 h after dark 5.250095 4.08691 6.41328