CREATE TABLE "coin_designs" (
  "year" real,
  "theme" text,
  "face_value" text,
  "weight" text,
  "diameter" text,
  "mintage" real,
  "issue_price" text
);

Question: What is the Diameter of the Dog Sled (gold variant) Theme coin?
SQL: SELECT "diameter" FROM "coin_designs" WHERE "theme"='dog sled (gold variant)';

Question: What is the MIntage after 2006 of the Ruby-Throated Hummingbird Theme coin?
SQL: SELECT MAX("mintage") FROM "coin_designs" WHERE "year">2006 AND "theme"='ruby-throated hummingbird';

Question: What is the Mintage of the 12.61 g Weight Ruby-Throated Hummingbird?
SQL: SELECT COUNT("mintage") FROM "coin_designs" WHERE "weight"='12.61 g' AND "theme"='ruby-throated hummingbird';

Question: What is the Year of the Coin with an Issue Price of $1089.95 and Mintage less than 900?
SQL: SELECT SUM("year") FROM "coin_designs" WHERE "issue_price"='$1089.95' AND "mintage"<900;

Question: What is the Theme of the coin with an Issue Price of $89.95?
SQL: SELECT "theme" FROM "coin_designs" WHERE "issue_price"='$89.95';