condition	mean	min	max
4 h after light	6.49958	6.0013	6.99786
8 h after light	6.44982	6.3801	6.51954
12 h after light	9.529585	9.21499	9.84418
4 h after dark	13.831833333333334	12.5262	15.2338
8 h after dark	12.853733333333333	12.2408	13.1825
12 h after dark	9.7964	9.04342	10.8488