condition	mean	min	max
4 h after light	8.190065	7.12326	9.25687
8 h after light	5.758134999999999	5.28792	6.22835
12 h after light	5.97225	5.89724	6.04726
4 h after dark	6.65803	4.38996	8.32426
8 h after dark	5.377933333333333	4.6526	6.54323
12 h after dark	7.31818	7.02727	7.89373