condition mean min max 4 h after light 11797.5 11797.5 11797.5 8 h after light 11108.15 8701.8 13514.5 12 h after light 8445.25 6235.9 10654.6 4 h after dark 5496.55 2892.8 8100.3 8 h after dark 5266.9 4590.0 5943.8 12 h after dark 10224.45 7228.7 13220.2