condition mean min max 4 h after light 2319.0 2319.0 2319.0 8 h after light 3015.1499999999996 1647.1 4383.2 12 h after light 4399.9 4363.5 4436.3 4 h after dark 2457.15 1130.9 3783.4 8 h after dark 1546.0 1169.9 1922.1 12 h after dark 1520.5 1315.9 1725.1