condition	mean	min	max
4 h after light	9.18602	8.140026	10.232014
8 h after light	8.3190805	8.175269	8.462892
12 h after light	8.0205525	7.578213	8.462892
4 h after dark	8.923388500000001	8.90961	8.937167
8 h after dark	8.4940925	8.446746	8.541439
12 h after dark	7.12588	7.12588	7.12588