condition mean min max 4 h after light 800.8 800.8 800.8 8 h after light 931.85 896.1 967.6 12 h after light 918.45 846.6 990.3 4 h after dark 1061.75 983.4 1140.1 8 h after dark 1125.9499999999998 1033.8 1218.1 12 h after dark 1130.2 1063.5 1196.9