condition	mean	min	max
4 h after light	1680.4	1680.4	1680.4
8 h after light	1632.85	1547.1	1718.6
12 h after light	1266.3	1049.5	1483.1
4 h after dark	1441.8	1168.0	1715.6
8 h after dark	1726.8	1631.6	1822.0
12 h after dark	1782.9	1750.6	1815.2