condition	mean	min	max
4 h after light	1787.6	1787.6	1787.6
8 h after light	1461.7	1376.4	1547.0
12 h after light	1089.65	900.2	1279.1
4 h after dark	1087.5	930.1	1244.9
8 h after dark	1232.4	1168.5	1296.3
12 h after dark	887.05	884.4	889.7