condition	mean	min	max
4 h after light	6.230575	5.67165	6.7895
8 h after light	6.01108	5.49236	6.5298
12 h after light	5.796355	5.76099	5.83172
4 h after dark	6.7408866666666665	5.58774	8.00147
8 h after dark	5.98179	5.46878	6.6805
12 h after dark	7.188436666666667	6.46524	8.04124