CREATE TABLE table_16530 ("Year" FLOAT, "Numer of Jamaicans granted British citizenship" FLOAT, "Naturalisation by residence" FLOAT, "Naturalisation by marriage" FLOAT, "Registration of a minor child" FLOAT, "Registration by other means" FLOAT)

what's the naturalisation by marriage with numer of jamaicans granted british citizenship being 3165
SELECT "Naturalisation by marriage" FROM table_16530 WHERE "Numer of Jamaicans granted British citizenship" = '3165'
SELECT "Naturalisation by marriage" FROM "table_16530" WHERE "Numer of Jamaicans granted British citizenship" = '3165'