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 0.03194876666666666 0.0 0.0958463 12 h after light 0.0 0.0 0.0 3 h after dark 0.0 0.0 0.0 6 h after dark 0.05805166666666667 0.0 0.174155 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0