condition	mean	min	max
4 h after light	8.411326500000001	8.339862	8.482791
8 h after light	8.048431	7.112889	8.983973
12 h after light	8.487971	8.482791	8.493151
4 h after dark	8.482791	8.482791	8.482791
8 h after dark	8.97252	8.391547	9.553493
12 h after dark	9.15161	9.15161	9.15161