condition mean min max 4 h after light 0.0080364 0.0 0.0160728 8 h after light 0.0087883 0.0 0.0175766 12 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0