condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 4 h after dark 0.07491545 0.0743778 0.0754531 8 h after dark 0.0925254 0.0372728 0.147778 12 h after dark 0.12938045 0.0733899 0.185371