condition	mean	min	max
4 h after light	4.264466666666667	4.22524	4.29157
8 h after light	4.32261	4.25505	4.43251
12 h after light	4.361033333333333	4.20058	4.47714
4 h after dark	4.323933333333334	4.258430000000001	4.42364
8 h after dark	4.28622	4.20973	4.34903
12 h after dark	4.25017	4.07423	4.4296