condition	mean	min	max
4 h after light	1044.0	1044.0	1044.0
8 h after light	1084.9	1043.1	1126.7
12 h after light	987.45	980.2	994.7
4 h after dark	1043.2	999.5	1086.9
8 h after dark	1016.65	963.7	1069.6
12 h after dark	836.3	793.6	879.0