condition	mean	min	max
4 h after light	6.630115	5.81001	7.45022
8 h after light	7.412485	6.92789	7.89708
12 h after light	8.172930000000001	8.00462	8.34124
4 h after dark	9.86924	9.72883	10.1204
8 h after dark	11.902733333333334	10.8209	13.5411
12 h after dark	8.66773	7.15126	10.2216