condition mean min max 4 h after light 502.1548666666667 398.605 588.508 8 h after light 377.4488333333333 228.44299999999998 502.6824 12 h after light 394.9094 319.8992 434.9515 16 h after light 541.8915333333333 516.1339 587.2522 4 h after dark 536.2511 470.9926 648.0824 8 h after dark 483.65619999999996 438.5057 516.5722