condition mean min max 3 h after light 0.8327333333333334 0.0 2.4982 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 0.9495633333333333 0.0 2.84869 6 h after dark 0.9779366666666666 0.0 2.93381 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0