What is listed for the 2012 that has a 2011 of 28.9%?
CREATE TABLE "professional_organizations" (
  "favorite_professional_sport" text,
  "2005" text,
  "2008" text,
  "2011" text,
  "2012" text
);
SELECT "2012" FROM "professional_organizations" WHERE "2011"='28.9%';