condition	mean	min	max
4 h after light	8.314928	7.465075	9.164781
8 h after light	7.495449499999999	7.476516	7.514383
12 h after light	7.574484	7.502826	7.646142
4 h after dark	7.986717499999999	7.646142	8.327293
8 h after dark	7.8047585	7.23538	8.374137
12 h after dark	7.15556	7.15556	7.15556