what is the unemployment rate where the market income per capita is $16,406?
CREATE TABLE table_22815568_13 (unemployment_rate VARCHAR, market_income_per_capita VARCHAR)
SELECT unemployment_rate FROM table_22815568_13 WHERE market_income_per_capita = "$16,406"
### Context: CREATE TABLE table_22815568_13 (unemployment_rate VARCHAR, market_income_per_capita VARCHAR) ### Question: what is the unemployment rate where the market income per capita is $16,406? ### Answer: SELECT unemployment_rate FROM table_22815568_13 WHERE market_income_per_capita = "$16,406"