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

### Instruction:
What is the average total of the census after 1971 with 10,412 (32.88%) Serbs?

### Inputs:
table_name: table, columns: ['Year of census', 'total', 'Croats', 'Serbs', 'Others']

### Response:
SELECT AVG total FROM table WHERE Year of census > 1971 AND Serbs = 10,412 (32.88%)