What is the 2013 index of economic freedom of Slovenia?
CREATE TABLE "list_by_country" (
  "country" text,
  "freedom_in_the_world_2013" text,
  "2013_index_of_economic_freedom" text,
  "2013_press_freedom_index" text,
  "2012_democracy_index" text
);
SELECT "2013_index_of_economic_freedom" FROM "list_by_country" WHERE "country"='slovenia';