CREATE TABLE "one_dollar" (
  "year" real,
  "theme" text,
  "artist" text,
  "mintage" text,
  "issue_price" text
);

Question: What is the latest year that has an n/a mintage and an Issue Price of $89.95?
SQL: SELECT MAX("year") FROM "one_dollar" WHERE "mintage"='n/a' AND "issue_price"='$89.95';

Question: What mintage for the royal canadian mint engravers before 2008 that has an issue price of $102.95?
SQL: SELECT "mintage" FROM "one_dollar" WHERE "artist"='royal canadian mint engravers' AND "year"<2008 AND "issue_price"='$102.95';

Question: What theme is associated with a year before 2006 and Issue Price of $25.22?
SQL: SELECT "theme" FROM "one_dollar" WHERE "year"<2006 AND "issue_price"='$25.22';