condition	mean	min	max
4 h after light	7.4092044999999995	7.252192	7.566217
8 h after light	7.6781775	7.232169	8.124186
12 h after light	7.299647	6.737348	7.861946
4 h after dark	7.345891	6.898043	7.793739
8 h after dark	7.633236999999999	7.407457	7.859017
12 h after dark	8.159086	8.159086	8.159086