Which 1964 has a Country of united states, and a 1969 smaller than 7.3?
CREATE TABLE "1960s" (
  "country" text,
  "1960" real,
  "1961" real,
  "1962" real,
  "1963" real,
  "1964" real,
  "1965" real,
  "1966" real,
  "1967" real,
  "1968" real,
  "1969" real
);
SELECT MIN("1964") FROM "1960s" WHERE "country"='united states' AND "1969"<7.3;