condition mean min max 4 h after light 7.885994999999999 7.58832 8.18367 8 h after light 28.4529 27.0885 29.8173 12 h after light 40.379 38.7555 42.0025 4 h after dark 43.2896 39.6955 45.8066 8 h after dark 20.70606666666667 20.1855 21.4837 12 h after dark 13.8457 12.2935 16.0955