condition	mean	min	max
4 h after light	2.305695	2.18246	2.42893
8 h after light	1.964515	1.62486	2.30417
12 h after light	2.02372	1.74196	2.30548
4 h after dark	4.265420000000001	4.15774	4.3731
8 h after dark	3.225635	3.13173	3.31954
12 h after dark	2.52923	2.41574	2.64272