How many years have a theme of Toronto Maple Leafs and an Issue Price of 24.95?
CREATE TABLE "nhl_coins" (
  "year" real,
  "theme" text,
  "artist" text,
  "issue_price" real,
  "special_notes" text
);
SELECT COUNT("year") FROM "nhl_coins" WHERE "theme"='toronto maple leafs' AND "issue_price"=24.95;