user: Question: What is the unemployment rate for the county with a market income per capita of $20,958?
Columns: ['County', 'Population', 'Unemployment Rate', 'Market Income Per Capita', 'Poverty Rate', 'Status']
Types: ['text', 'real', 'text', 'text', 'text', 'text']
Sample row: ['Banks', 14422.0, '3.6%', '$24,326', '12.5%', 'Transitional']
SQL:

assistant: SELECT "Unemployment Rate" FROM "Table" WHERE "Market Income Per Capita" = '$20,958';