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 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 3 h after dark 0.2900763333333333 0.0 0.870229 6 h after dark 0.469603 0.0 0.742915 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0