condition mean min max 4 h after light 2.8078399999999997 2.39512 3.22056 8 h after light 2.96204 2.31801 3.60607 12 h after light 3.54791 2.86586 4.22996 4 h after dark 5.42214 5.33773 5.50655 8 h after dark 3.5705150000000003 3.09372 4.04731 12 h after dark 3.4503500000000003 3.26717 3.63353