condition	mean	min	max
4 h after light	6228.2	6228.2	6228.2
8 h after light	6624.9	6469.2	6780.6
12 h after light	6840.65	6594.1	7087.2
4 h after dark	6782.2	6330.4	7234.0
8 h after dark	7041.85	6770.1	7313.6
12 h after dark	6721.9	6677.5	6766.3