condition mean min max 4 h after light 3.47171 2.29887 4.24041 8 h after light 2.8486656666666668 0.875397 4.76771 12 h after light 2.98412 1.80298 4.52276 4 h after dark 4.1879566666666665 3.13279 5.49397 8 h after dark 5.315446666666666 4.63323 6.24612 12 h after dark 6.4319999999999995 5.87782 6.78008