condition mean min max 4 h after light 3673.045 3604.69 3741.4 8 h after light 5941.115 5737.44 6144.79 12 h after light 6534.15 6293.26 6775.04 4 h after dark 3407.7749999999996 3134.87 3680.68 8 h after dark 2676.02 2656.4 2695.64 12 h after dark 2311.6949999999997 2310.27 2313.12