condition	mean	min	max
4 h after light	1.572025	1.48982	1.65423
8 h after light	1.376805	1.3636	1.39001
12 h after light	1.790095	1.75015	1.83004
4 h after dark	1.4611	1.40556	1.51664
8 h after dark	2.24533	1.81735	2.67331
12 h after dark	2.363885	2.11432	2.61345