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 0.0147826 0.0 0.0443478 12 h after light 0.0 0.0 0.0 3 h after dark 0.025381699999999997 0.0 0.0761451 6 h after dark 0.010834166666666666 0.0 0.0325025 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0