condition	mean	min	max
4 h after light	7.610785	7.02447	8.1971
8 h after light	5.853965	5.43561	6.27232
12 h after light	6.63366	6.30324	6.96408
4 h after dark	8.419855	8.318	8.52171
8 h after dark	7.3243	7.29191	7.35669
12 h after dark	8.052595	7.98457	8.12062