What's the $51,914 median household income per capita?
CREATE TABLE "new_mexico_counties_ranked_by_per_capita" (
  "county" text,
  "per_capita_income" text,
  "median_household_income" text,
  "median_family_income" text,
  "population" real,
  "number_of_households" real
);
SELECT "per_capita_income" FROM "new_mexico_counties_ranked_by_per_capita" WHERE "median_household_income"='$51,914';