condition mean min max 4 h after light 3165.1 3165.1 3165.1 8 h after light 3643.0 2936.1 4349.9 12 h after light 3941.2 3547.5 4334.9 4 h after dark 5540.700000000001 4364.8 6716.6 8 h after dark 6354.6 5950.7 6758.5 12 h after dark 5849.15 5651.7 6046.6