condition	mean	min	max
4 h after light	6.56433	6.52661	6.60205
8 h after light	3.71808	3.44455	3.99161
12 h after light	5.715395	5.39984	6.03095
4 h after dark	11.35549	9.26908	13.4419
8 h after dark	8.2244	8.13872	8.31008
12 h after dark	7.391235	7.26222	7.52025