condition	mean	min	max
4 h after light	6.727155	6.71208	6.74223
8 h after light	5.006995	4.83711	5.17688
12 h after light	1.8887	1.81342	1.96398
4 h after dark	1.6060133333333333	1.54208	1.72782
8 h after dark	5.799096666666666	5.46746	5.97941
12 h after dark	6.07068	5.36764	7.07453