condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.01554935 0.0 0.0310987 4 h after light 0.0 0.0 0.0 8 h after light 0.03199895 0.0319381 0.0320598 12 h after light 0.0 0.0 0.0 2 h after dark 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0