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_28891101_3 (census_2006_population VARCHAR, area__km_2__ VARCHAR)
### Question:
What is the 2006 census population when the area is 159?
### Answer:
SELECT COUNT(census_2006_population) FROM table_28891101_3 WHERE area__km_2__ = 159