SELECT sum(t1.graduate) FROM discipline_enrollments AS t1 JOIN campuses AS t2 ON t1.campus  =  t2.id WHERE t1.year  =  2004 AND t2.campus  =  "San Francisco State University"
What is the number of graduates in "San Francisco State University" in year 2004?
[Schema (values) (types)]: | csu_1 |  Campuses : id (text) , campus (number) , location (text) , county (text) , year (text) | csu_fees : campus (text) , year (number) , campusfee (text) | degrees : year (text) , campus (number) , degrees (text) | discipline_enrollments : campus (text) , discipline (number) , year (text) , undergraduate (text) , graduate (text) | enrollments : campus (text) , year (number) , totalenrollment_ay (text) , fte_ay (text) | faculty : campus (text) , year (number) , faculty (text);