condition	mean	min	max
4 h after light	2.119545	2.02328	2.21581
8 h after light	1.66642	1.62272	1.71012
12 h after light	1.95231	1.93059	1.97403
4 h after dark	3.49113	2.96315	3.78981
8 h after dark	3.84262	3.51504	4.01489
12 h after dark	3.9558233333333335	3.79087	4.28368