CREATE TABLE table_11214212_1 (naturalisation_by_marriage VARCHAR(255), numer_of_jamaicans_granted_british_citizenship VARCHAR(255))
what's the naturalisation  by marriage with numer of jamaicans granted british citizenship being 3165
    
SQL: SELECT naturalisation_by_marriage FROM table_11214212_1 WHERE numer_of_jamaicans_granted_british_citizenship = 3165