condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.0139172 0.0 0.0417516 12 h after light 0.010151633333333333 0.0 0.0304549 3 h after dark 0.0 0.0 0.0 6 h after dark 0.008902633333333333 0.0 0.0267079 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0