condition	mean	min	max
4 h after light	7.715598	7.646142	7.785054
8 h after light	7.297276500000001	6.948411	7.646142
12 h after light	7.132441	6.84919	7.415692
4 h after dark	6.7799305	6.710671	6.84919
8 h after dark	7.948021000000001	7.646142	8.2499
12 h after dark	7.773028	7.773028	7.773028