condition	mean	min	max
4 h after light	1029.2	1029.2	1029.2
8 h after light	965.7	960.6	970.8
12 h after light	821.45	730.8	912.1
4 h after dark	725.2	678.6	771.8
8 h after dark	734.9	645.8	824.0
12 h after dark	1024.65	1013.3	1036.0