condition	mean	min	max
4 h after light	5.722816666666667	5.660880000000001	5.76799
8 h after light	5.72018	5.53667	5.86702
12 h after light	5.640203333333333	5.5012	5.84161
4 h after dark	5.6784300000000005	5.5723400000000005	5.86754
8 h after dark	5.710183333333333	5.35925	6.05653
12 h after dark	5.78344	5.46249	6.22194