Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_90 (total INTEGER, year_of_census VARCHAR, serbs VARCHAR)
### Question:
What is the average total of the census after 1971 with 10,412 (32.88%) Serbs?
### Answer:
SELECT AVG(total) FROM table_name_90 WHERE year_of_census > 1971 AND serbs = "10,412 (32.88%)"