condition	mean	min	max
4 h after light	1906.3	1906.3	1906.3
8 h after light	1786.45	1758.2	1814.7
12 h after light	1565.65	1560.7	1570.6
4 h after dark	1276.65	1138.2	1415.1
8 h after dark	1167.5	1027.0	1308.0
12 h after dark	923.2	876.8	969.6