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_22815568_2 (unemployment_rate VARCHAR, market_income_per_capita VARCHAR)
### Question:
What is the unemployment rate for the county with a market income per capita of $20,958?
### Answer:
SELECT COUNT(unemployment_rate) FROM table_22815568_2 WHERE market_income_per_capita = "$20,958"