condition	mean	min	max
4 h after light	7.897062	7.242545	8.551579
8 h after light	7.9246935	7.802234	8.047153
12 h after light	6.9807995	6.763073	7.198526
4 h after dark	7.292296	6.709555	7.875037
8 h after dark	7.4370825	7.42368	7.450485
12 h after dark	7.477837	7.477837	7.477837