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 0.226514 0.0 0.679542 6 h after dark 0.0 0.0 0.0 9 h after dark 0.14847233333333335 0.0 0.445417 12 h after dark 0.24079333333333333 0.0 0.72238