condition	mean	min	max
4 h after light	8.034772	7.279188	8.790356
8 h after light	7.924143000000001	7.847117	8.001169
12 h after light	7.8410825	7.835048	7.847117
4 h after dark	7.667324	7.127687	8.206961
8 h after dark	8.1012875	7.847117	8.355458
12 h after dark	7.847117	7.847117	7.847117