condition	mean	min	max
4 h after light	1290.9	1290.9	1290.9
8 h after light	1184.65	1163.5	1205.8
12 h after light	951.95	825.9	1078.0
4 h after dark	746.3	597.0	895.6
8 h after dark	676.0	640.7	711.3
12 h after dark	787.05	604.3	969.8