condition mean min max 0 h after light 3.8215399999999997 3.81813 3.82495 4 h after light 3.57238 3.13742 4.00734 8 h after light 3.837325 3.4119 4.26275 4 h after dark 3.0912800000000002 2.78218 3.40038 8 h after dark 2.74005 2.56883 2.91127 12 h after dark 2.12973 2.04546 2.214