What is the ratio of Republicans to Democrats in South Carolina?
CREATE TABLE "partisan_mix_of_the_house_by_state" (
  "state_ranked_in_partisan_order" text,
  "percentage_republicans" text,
  "percentage_democrats" text,
  "republican_democratic" text,
  "republican_seat_plurality" text
);
SELECT "republican_democratic" FROM "partisan_mix_of_the_house_by_state" WHERE "state_ranked_in_partisan_order"='south carolina';