condition	mean	min	max
4 h after light	1874.7	1874.7	1874.7
8 h after light	1699.5	1564.6	1834.4
12 h after light	1777.0	1765.9	1788.1
4 h after dark	1697.9	1582.8	1813.0
8 h after dark	1642.65	1635.3	1650.0
12 h after dark	1689.5	1611.7	1767.3