condition	mean	min	max
4 h after light	5.873150000000001	5.44838	6.29792
8 h after light	6.853305	6.50118	7.20543
12 h after light	7.755555	6.83629	8.67482
4 h after dark	12.64285	11.9426	13.3431
8 h after dark	10.6068	10.4194	10.7942
12 h after dark	8.60246	8.16477	9.04015