CREATE TABLE table_282 ("car plates  ( since 1937 ) " CLOB, "Voivodeship Separate city" CLOB, "Capital" CLOB, "Area in 1000km\\u00b2  ( 1930 ) " CLOB, "Population in 1000  ( 1931 ) " CLOB)

List population when their car plates are 30-34.
SELECT "Population in 1000 (1931)" FROM table_282 WHERE "car plates (since 1937)" = '30-34'
SELECT "Population in 1000 (1931)" FROM "table_282" WHERE "car plates (since 1937)" = '30-34'