condition	mean	min	max
4 h after light	1878.8	1878.8	1878.8
8 h after light	1707.05	1621.5	1792.6
12 h after light	1584.1	1464.3	1703.9
4 h after dark	1929.75	1538.0	2321.5
8 h after dark	1860.2	1854.7	1865.7
12 h after dark	1802.25	1733.9	1870.6