condition	mean	min	max
4 h after light	8.839341999999998	8.768396	8.910288
8 h after light	8.1932765	8.007228	8.379325
12 h after light	8.408886500000001	8.113077	8.704696
4 h after dark	7.358228	6.971436	7.74502
8 h after dark	7.628116	7.61009	7.646142
12 h after dark	8.23579	8.23579	8.23579