condition mean min max 0 h after light 6.57003 6.0577 7.08236 4 h after light 4.33958 4.21186 4.4673 8 h after light 3.3751949999999997 2.74644 4.00395 4 h after dark 6.528544999999999 5.74128 7.31581 8 h after dark 6.813705000000001 6.81073 6.81668 12 h after dark 7.576565 7.40965 7.74348