condition	mean	min	max
4 h after light	1843.9250000000002	1799.89	1887.96
8 h after light	1447.75	1378.52	1516.98
12 h after light	1104.95	1097.67	1112.23
4 h after dark	1085.983	975.846	1196.12
8 h after dark	1687.575	1658.48	1716.67
12 h after dark	1937.82	1908.54	1967.1