condition	mean	min	max
4 h after light	7.787626666666666	2.97292	10.7544
8 h after light	6.94531	1.27261	10.5293
12 h after light	6.167953333333333	4.4408	7.35776
4 h after dark	9.14004	6.93103	11.4404
8 h after dark	9.737716666666666	4.38495	14.5406
12 h after dark	15.4314	11.7595	17.317