condition	mean	min	max
4 h after light	3.7531350000000003	3.31859	4.18768
8 h after light	5.35475	5.12749	5.58201
12 h after light	6.318965	6.24631	6.39162
4 h after dark	10.61965	10.5073	10.732
8 h after dark	7.362375	7.31425	7.4105
12 h after dark	6.0061800000000005	5.81802	6.19434