condition	mean	min	max
0 h after light	6.054855	5.844	6.26571
4 h after light	3.8914099999999996	3.52237	4.26045
8 h after light	5.486225	5.0585	5.91395
4 h after dark	6.90871	6.24905	7.56837
8 h after dark	6.657695	6.15142	7.16397
12 h after dark	4.158925	3.95576	4.36209