condition	mean	min	max
4 h after light	972.9051715	943.275419	1002.534924
8 h after light	966.8951155	890.155134	1043.635097
12 h after light	975.350226	933.314549	1017.385903
4 h after dark	951.3912335	826.261361	1076.521106
8 h after dark	637.0116985	451.749271	822.274126
12 h after dark	1077.284418	1077.284418	1077.284418