condition	mean	min	max
4 h after light	6.480565	6.42291	6.53822
8 h after light	6.36201	6.12441	6.59961
12 h after light	6.77473	6.67145	6.87801
4 h after dark	10.50915	10.2724	10.7459
8 h after dark	11.1387	10.9302	11.3472
12 h after dark	9.68322	9.56513	9.80131