condition	mean	min	max
0 h after light	3.152005	2.79386	3.51015
4 h after light	3.897165	3.52758	4.26675
8 h after light	14.90185	14.3904	15.4133
4 h after dark	12.1573	10.4305	13.8841
8 h after dark	7.539605	7.05619	8.02302
12 h after dark	3.552835	2.73712	4.36855