CREATE TABLE table_203_163 (id NUMBER, "year" NUMBER, "total" NUMBER, "serbs" CLOB, "hungarians" CLOB, "germans" CLOB, "romanians" CLOB, "slovaks" CLOB)

what was the first year that the romanian population was less than 51,000 ?
SELECT MIN("year") FROM table_203_163 WHERE "romanians" < 51000
SELECT MIN("year") FROM "table_203_163" WHERE "romanians" < 51000