condition	mean	min	max
4 h after light	1007.4	1007.4	1007.4
8 h after light	1001.4	898.8	1104.0
12 h after light	860.6	754.2	967.0
4 h after dark	784.55	777.6	791.5
8 h after dark	924.9	855.9	993.9
12 h after dark	922.0500000000001	765.7	1078.4