condition mean min max 4 h after light 5340.0 5340.0 5340.0 8 h after light 5123.85 4844.9 5402.8 12 h after light 6210.7 5521.9 6899.5 4 h after dark 6303.0 4672.0 7934.0 8 h after dark 4204.55 3938.3 4470.8 12 h after dark 4421.35 4351.2 4491.5