condition	mean	min	max
4 h after light	6.2717600000000004	5.31577	7.22775
8 h after light	6.463655	6.404	6.52331
12 h after light	7.07627	6.972	7.18054
4 h after dark	7.430656666666667	6.93619	8.05909
8 h after dark	8.179946666666668	8.09092	8.33769
12 h after dark	6.86796	6.23609	7.33388