condition	mean	min	max
4 h after light	9.324611	9.222911	9.426311
8 h after light	9.352539	9.054186	9.650892
12 h after light	8.773422	8.704812	8.842032
4 h after dark	8.17241	7.472986	8.871834
8 h after dark	9.0038595	7.935354	10.072365
12 h after dark	10.510885	10.510885	10.510885