condition	mean	min	max
4 h after light	5.4770900000000005	4.655	6.29918
8 h after light	4.802635	4.51471	5.09056
12 h after light	6.30119	5.9552	6.64718
4 h after dark	6.964095	6.91814	7.01005
8 h after dark	6.824695	6.60444	7.04495
12 h after dark	6.723375000000001	6.57861	6.86814