condition	mean	min	max
4 h after light	8.847405	7.47371	10.2211
8 h after light	7.792859999999999	7.34195	8.24377
12 h after light	7.16494	6.77513	7.55475
4 h after dark	7.954823333333334	7.34661	8.75205
8 h after dark	8.90237	8.09528	9.40719
12 h after dark	8.984666666666667	8.61086	9.27606