condition	mean	min	max
4 h after light	8.151673333333333	8.055530000000001	8.33591
8 h after light	8.004003333333333	7.91326	8.07986
12 h after light	7.97745	7.8662399999999995	8.13274
4 h after dark	7.96144	7.905589999999999	7.990480000000001
8 h after dark	8.031916666666667	7.97428	8.10637
12 h after dark	8.22183	7.987189999999999	8.5105