condition mean min max 4 h after light 3.4002299999999996 3.09948 3.70098 8 h after light 2.637255 1.62925 3.64526 12 h after light 3.5648350000000004 3.41753 3.71214 4 h after dark 5.580816666666666 4.95167 6.43076 8 h after dark 7.469086666666667 5.71531 8.90281 12 h after dark 4.325583333333333 3.30382 5.23342