condition	mean	min	max
4 h after light	1458.3	1458.3	1458.3
8 h after light	1416.35	1134.7	1698.0
12 h after light	1814.4	1491.7	2137.1
4 h after dark	1439.75	833.8	2045.7
8 h after dark	1039.35	889.0	1189.7
12 h after dark	989.55	944.3	1034.8