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 0.10232183333333333 0.0 0.249029 6 h after dark 0.252907 0.132998 0.477342 9 h after dark 0.06519083333333334 0.0 0.100147 12 h after dark 0.0 0.0 0.0