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

### Instruction:
What's the lowest Year with a World Rank of 5th, with a Result greater than 20.31?

### Inputs:
table_name: table, columns: ['Year', 'Result', 'World Rank', 'Location', 'Date']

### Response:
SELECT MIN Year FROM table WHERE World Rank = 5th AND Result > 20.31