What is the title of every song, and how many weeks was each song at #1 for Rihanna in 2012?
create table table_19542477_9 (song_s__—_weeks varchar, issue_years varchar, artist_s_ varchar, PRIMARY KEY (song_s__—_weeks))
select song_s__—_weeks from table_19542477_9 where issue_years = 2012 and artist_s_ = "rihanna"