condition	mean	min	max
4 h after light	1975.3	1975.3	1975.3
8 h after light	1554.9499999999998	1439.8	1670.1
12 h after light	1520.75	1424.7	1616.8
4 h after dark	1404.1999999999998	1394.6	1413.8
8 h after dark	1580.5	1425.6	1735.4
12 h after dark	1651.65	1562.9	1740.4