condition mean min max 4 h after light 4.428095000000001 4.16321 4.69298 8 h after light 4.23607 4.0037 4.46844 12 h after light 5.393435 5.38183 5.40504 4 h after dark 6.000735 5.63094 6.37053 8 h after dark 5.5162700000000005 5.26054 5.772 12 h after dark 5.641505 5.59386 5.68915