Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What is the average year that the USD exchange of ￥88.54 had a gross domestic product larger than 477,327,134?

### Inputs:
table_name: table, columns: ['Year', 'Gross domestic product', 'US dollar exchange', 'Nominal per-capita GDP (as % of USA)', 'PPP capita GDP (as % of USA)']

### Response:
SELECT AVG Year FROM table WHERE US dollar exchange = ￥88.54 AND Gross domestic product > 477,327,134