condition	mean	min	max
4 h after light	5.677465	5.23285	6.12208
8 h after light	5.35289	5.12776	5.57802
12 h after light	5.555365	5.43608	5.67465
4 h after dark	6.93078	6.81938	6.98984
8 h after dark	7.378116666666666	7.07081	7.83843
12 h after dark	7.61962	7.2344	8.00793