condition	mean	min	max
4 h after light	7.3749139999999995	6.408047	8.341781
8 h after light	8.026881	7.753262	8.3005
12 h after light	8.746588500000001	8.496942	8.996235
4 h after dark	9.4268735	8.341781	10.511966
8 h after dark	9.3578925	9.199481	9.516304
12 h after dark	8.27989	8.27989	8.27989