condition	mean	min	max
4 h after light	8.387276499999999	7.929404	8.845149
8 h after light	7.881449999999999	7.505857	8.257043
12 h after light	8.7590305	8.60591	8.912151
4 h after dark	9.396964	8.947456	9.846472
8 h after dark	9.015930999999998	8.193397	9.838465
12 h after dark	7.811539	7.811539	7.811539