condition	mean	min	max
4 h after light	9.69783	9.50356	9.87076
8 h after light	9.725706666666667	9.6058	9.88572
12 h after light	9.743163333333333	9.52463	9.88365
4 h after dark	9.384540000000001	9.27091	9.45303
8 h after dark	9.08803	8.90147	9.29158
12 h after dark	8.941903333333332	8.74922	9.147689999999999