condition	mean	min	max
0 h after light	5.52022	4.71149	6.32895
4 h after light	10.6214	10.4742	10.7686
8 h after light	12.86725	11.009	14.7255
4 h after dark	18.33165	16.6818	19.9815
8 h after dark	14.508	14.3571	14.6589
12 h after dark	8.07691	6.84387	9.30995