CREATE TABLE table_49350 ("Average population  ( x 1000 ) " CLOB, "Live births 1" CLOB, "Deaths 1" CLOB, "Natural change 1" CLOB, "Crude birth rate  ( per 1000 ) " FLOAT, "Crude death rate  ( per 1000 ) " FLOAT, "Natural change  ( per 1000 ) " FLOAT)

what is the natural change (per 1000) when the crude death rate (per 1000) is 10?
SELECT "Natural change (per 1000)" FROM table_49350 WHERE "Crude death rate (per 1000)" = '10'
SELECT "Natural change (per 1000)" FROM "table_49350" WHERE "Crude death rate (per 1000)" = '10'