condition	mean	min	max
4 h after light	8.768320000000001	8.49893	8.967410000000001
8 h after light	9.013603333333332	8.76574	9.21374
12 h after light	9.12143	9.00485	9.218639999999999
4 h after dark	8.717663333333334	8.592130000000001	8.81634
8 h after dark	8.806276666666667	8.69772	8.90596
12 h after dark	8.741003333333333	8.63165	8.82981