condition	mean	min	max
4 h after light	7.824973333333333	7.5717	7.994560000000001
8 h after light	8.368433333333332	8.24198	8.438239999999999
12 h after light	8.6176	8.557039999999999	8.73734
4 h after dark	8.70995	8.50217	8.92282
8 h after dark	8.39728	8.29315	8.54455
12 h after dark	8.350516666666667	8.23881	8.49121