CREATE TABLE table_42883 ("Table 2: Depression Data" CLOB, "1929" FLOAT, "1931" FLOAT, "1933" FLOAT, "1937" FLOAT, "1938" FLOAT, "1940" FLOAT)

What is the sum of 1938 values where 1933 values are under 68.3 and 1940 valures are under 4.02?
SELECT SUM("1938") FROM table_42883 WHERE "1933" < '68.3' AND "1940" < '4.02'
SELECT SUM("1938") FROM "table_42883" WHERE "1933" < '68.3' AND "1940" < '4.02'