condition mean min max 4 h after light 3.6620933333333334 3.01587 4.01378 8 h after light 2.677305 0.553055 4.62937 12 h after light 3.7627099999999998 2.82285 4.3142 4 h after dark 6.53962 5.52891 7.76933 8 h after dark 5.64707 4.07434 7.11559 12 h after dark 5.1951366666666665 4.02996 5.93009