condition	mean	min	max
4 h after light	9.42618	9.33576	9.50464
8 h after light	7.942183333333333	7.8941300000000005	7.99667
12 h after light	8.133216666666668	8.05127	8.20035
4 h after dark	8.197903333333333	8.168989999999999	8.22444
8 h after dark	9.46008	9.178989999999999	9.76442
12 h after dark	10.179313333333333	10.01679	10.28307