condition mean min max 4 h after light 913.1 913.1 913.1 8 h after light 1118.45 800.2 1436.7 12 h after light 1028.4 913.3 1143.5 4 h after dark 897.6 660.3 1134.9 8 h after dark 981.55 701.4 1261.7 12 h after dark 904.8 885.0 924.6