condition	mean	min	max
4 h after light	618.0125	609.039	626.986
8 h after light	459.71450000000004	447.93	471.499
12 h after light	1238.685	1229.28	1248.09
4 h after dark	1857.5	1824.02	1891.34
8 h after dark	1553.5466666666666	1492.1	1595.42
12 h after dark	951.7616666666667	918.327	984.16