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

### Instruction:
What is the average decile with Years of 1–8, and an Area of waipara?

### Inputs:
table_name: table, columns: ['Name', 'Years', 'Gender', 'Area', 'Authority', 'Decile', 'Roll']

### Response:
SELECT AVG Decile FROM table WHERE Years = 1–8 AND Area = waipara