condition	mean	min	max
4 h after light	901.2	901.2	901.2
8 h after light	920.25	891.5	949.0
12 h after light	1016.15	999.8	1032.5
4 h after dark	856.85	844.1	869.6
8 h after dark	875.95	854.9	897.0
12 h after dark	828.2	799.6	856.8