condition	mean	min	max
4 h after light	1177.4	1177.4	1177.4
8 h after light	1056.85	1049.5	1064.2
12 h after light	1209.75	1084.5	1335.0
4 h after dark	901.3	673.9	1128.7
8 h after dark	841.4	814.3	868.5
12 h after dark	841.65	822.9	860.4