condition mean min max 2 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 10 h after light 0.0205755 0.0 0.123453 14 h after light 0.0 0.0 0.0 18 h after light 0.011622116666666666 0.0 0.0697327 2 h after dark 0.0 0.0 0.0