condition	mean	min	max
4 h after light	7.0514	6.35621	7.74659
8 h after light	5.825835	5.49609	6.15558
12 h after light	7.89224	7.2347	8.54978
4 h after dark	7.92092	7.21524	8.6266
8 h after dark	7.03939	6.91184	7.16694
12 h after dark	7.97184	7.17156	8.77212