condition	mean	min	max
4 h after light	1568.5	1568.5	1568.5
8 h after light	1396.4	1275.7	1517.1
12 h after light	1724.95	1473.2	1976.7
4 h after dark	1775.25	1752.1	1798.4
8 h after dark	1836.6	1756.0	1917.2
12 h after dark	1329.25	1154.8	1503.7