condition	mean	min	max
4 h after light	8.090556666666666	7.83747	8.30702
8 h after light	8.476373333333333	8.43699	8.537339999999999
12 h after light	7.506983333333333	7.439010000000001	7.552789999999999
4 h after dark	9.127816666666668	8.94805	9.321480000000001
8 h after dark	9.014973333333334	8.675469999999999	9.215530000000001
12 h after dark	9.29789	9.23173	9.377369999999999