condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.03985933333333334 0.0 0.119578 9 h after light 0.0 0.0 0.0 12 h after light 0.0880845 0.0 0.238756 3 h after dark 0.0 0.0 0.0 6 h after dark 0.097203 0.0 0.291609 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0