condition	mean	min	max
4 h after light	8.84111	7.56782	10.1144
8 h after light	6.04209	5.38066	6.70352
12 h after light	2.693075	2.6353	2.75085
4 h after dark	7.33109	7.1819	7.48028
8 h after dark	7.964425	7.82924	8.09961
12 h after dark	8.20219	8.10083	8.30355