condition	mean	min	max
4 h after light	1203.6	1203.6	1203.6
8 h after light	1204.1	1190.4	1217.8
12 h after light	1839.4	1702.0	1976.8
4 h after dark	1258.3	678.6	1838.0
8 h after dark	857.1	808.1	906.1
12 h after dark	907.45	892.8	922.1