condition mean min max 4 h after light 3.21558 2.74997 3.68119 8 h after light 2.046395 1.89066 2.20213 12 h after light 1.8628049999999998 1.56842 2.15719 4 h after dark 2.616276666666667 2.52968 2.78897 8 h after dark 3.7032666666666665 3.12689 4.2623 12 h after dark 2.993676666666667 2.92417 3.08802