How many of the elected officials are on the Economic Matters committee?
CREATE TABLE "current_members_of_the_howard_county_del" (
  "district" text,
  "counties_represented" text,
  "delegate" text,
  "party" text,
  "first_elected" real,
  "committee" text
);
SELECT COUNT("first_elected") FROM "current_members_of_the_howard_county_del" WHERE "committee"='Economic Matters';