What is the average 1940 value where 1929 values are 101.4 and 1933 values are over 68.3?
CREATE TABLE "relief" (
  "table_2_depression_data" text,
  "1929" real,
  "1931" real,
  "1933" real,
  "1937" real,
  "1938" real,
  "1940" real
);
SELECT AVG("1940") FROM "relief" WHERE "1929"=101.4 AND "1933">68.3;