what's the naturalisation  by marriage with numer of jamaicans granted british citizenship being 3165
create table table_11214212_1 (naturalisation_by_marriage varchar, numer_of_jamaicans_granted_british_citizenship varchar, PRIMARY KEY (naturalisation_by_marriage))
select naturalisation_by_marriage from table_11214212_1 where numer_of_jamaicans_granted_british_citizenship = 3165