condition	mean	min	max
4 h after light	7.96184	7.8837399999999995	8.07682
8 h after light	8.09286	8.01816	8.13112
12 h after light	8.303083333333333	8.17263	8.52195
4 h after dark	8.60945	8.46921	8.80345
8 h after dark	8.38356	8.201410000000001	8.59123
12 h after dark	8.293463333333333	8.03755	8.49423