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_22854436_1 (average_annual_rainfall__mm_ VARCHAR, population__2002_census_data_ VARCHAR)
### Question:
Name the annual rainfail for 2002 population being 493984
### Answer:
SELECT average_annual_rainfall__mm_ FROM table_22854436_1 WHERE population__2002_census_data_ = 493984