condition	mean	min	max
4 h after light	8.190190999999999	8.18982	8.190562
8 h after light	8.762458	8.27527	9.249646
12 h after light	9.328192000000001	9.287501	9.368883
4 h after dark	8.228133	8.019409	8.436857
8 h after dark	8.570387	8.244441	8.896333
12 h after dark	8.066933	8.066933	8.066933