condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.18486203333333334 0.0 0.479456 12 h after light 0.08724133333333334 0.0 0.261724 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