condition	mean	min	max
4 h after light	2.264965	2.21941	2.31052
8 h after light	3.75715	3.68476	3.82954
12 h after light	3.64418	3.4202	3.86816
4 h after dark	4.83087	4.50106	5.16068
8 h after dark	3.96494	3.78256	4.14732
12 h after dark	2.972265	2.54607	3.39846