condition	mean	min	max
4 h after light	1223.3	1223.3	1223.3
8 h after light	1190.35	1171.7	1209.0
12 h after light	1237.1	1047.7	1426.5
4 h after dark	1485.1	1301.9	1668.3
8 h after dark	1596.0	1563.6	1628.4
12 h after dark	1489.95	1480.2	1499.7