condition	mean	min	max
4 h after light	7.479240000000001	6.72581	8.23267
8 h after light	7.474955	7.10149	7.84842
12 h after light	8.771995	8.11278	9.43121
4 h after dark	10.933800000000002	10.3449	11.5227
8 h after dark	9.715755000000001	9.70269	9.72882
12 h after dark	8.285845	8.156	8.41569