CREATE TABLE table_204_381 (id NUMBER, "sum" NUMBER, "mongolian" NUMBER, "population\ ( 2005 ) " NUMBER, "population\ ( 2008 ) " NUMBER, "population\ ( 2009 ) " NUMBER, "area\ km2" NUMBER, "density\ /km2" NUMBER, "sum centre\ population" NUMBER)

in 2005 , what city had the most population recorded ?
SELECT "sum" FROM table_204_381 ORDER BY "population\n(2005)" DESC LIMIT 1
SELECT "sum" FROM "table_204_381" ORDER BY "population\n(2005)" DESC FETCH FIRST 1 ROWS ONLY