condition	mean	min	max
4 h after light	15.96433	14.12168	19.09671
8 h after light	18.338089999999998	14.347729999999999	26.044729999999998
12 h after light	12.896495666666667	9.958747	15.45214
16 h after light	15.899308	8.874984	19.63459
4 h after dark	19.691226666666665	11.516910000000001	25.8296
8 h after dark	12.750798666666666	7.564425999999999	19.94503