condition mean min max 3 h after light 7.967333333333333 7.08978 8.58736 6 h after light 8.153316666666667 5.77092 11.12 9 h after light 11.368966666666667 10.2732 12.013 12 h after light 12.00855 10.6652 14.7487 3 h after dark 18.0176 15.7965 19.2232 6 h after dark 15.9072 15.2656 16.5246 9 h after dark 11.7385 9.2264 13.4226 12 h after dark 10.346354999999999 9.61251 11.0802