condition	mean	min	max
4 h after light	1937.135	1863.23	2011.04
8 h after light	2290.36	2186.32	2394.4
12 h after light	2409.98	2244.62	2575.34
4 h after dark	1736.515	1612.9	1860.13
8 h after dark	1586.22	1558.17	1614.27
12 h after dark	1702.475	1680.81	1724.14