condition	mean	min	max
4 h after light	7.737534999999999	7.43809	8.03698
8 h after light	6.967895	6.49671	7.43908
12 h after light	8.953195000000001	8.81967	9.08672
4 h after dark	8.812863333333333	8.26289	9.20633
8 h after dark	7.4248666666666665	6.60077	8.23377
12 h after dark	7.9638133333333325	7.52987	8.21262