condition	mean	min	max
4 h after light	5.91213	5.726030000000001	6.0469
8 h after light	5.77334	5.72463	5.79931
12 h after light	5.686446666666667	5.41669	5.9814300000000005
4 h after dark	5.766943333333333	5.74201	5.7967
8 h after dark	5.806753333333334	5.6481900000000005	6.0239
12 h after dark	5.856326666666666	5.7461199999999995	5.9650099999999995