condition	mean	min	max
4 h after light	5.31619	5.277769999999999	5.34357
8 h after light	5.431606666666666	5.37251	5.53979
12 h after light	5.21426	4.98607	5.36068
4 h after dark	5.294496666666667	5.25804	5.34581
8 h after dark	5.238673333333333	5.20144	5.2917
12 h after dark	5.25469	5.14151	5.37115