condition	mean	min	max
4 h after light	6.88485	6.76583	7.0652
8 h after light	6.8480066666666675	6.755960000000001	6.96035
12 h after light	7.0725999999999996	6.6807	7.39733
4 h after dark	6.793376666666667	6.70355	6.84363
8 h after dark	7.416259999999999	7.181039999999999	7.62472
12 h after dark	8.164530000000001	8.08685	8.23673