CREATE TABLE table_25337 ("County" TEXT, "Population" FLOAT, "Unemployment Rate" TEXT, "Market Income Per Capita" TEXT, "Poverty Rate" TEXT, "Status" TEXT)

What is the povery rate of the county with market income per capita of $20,518?
SELECT "Poverty Rate" FROM table_25337 WHERE "Market Income Per Capita" = '$20,518'
SELECT "Poverty Rate" FROM "table_25337" WHERE "Market Income Per Capita" = '$20,518'