CREATE TABLE table_204_778 (id NUMBER, "code" NUMBER, "county" CLOB, "former province" CLOB, "area  ( km2 ) " NUMBER, "population\ census 2009" NUMBER, "capital" CLOB)

what was the total population of all 6 counties combined in 2009 ?
SELECT SUM("population\ncensus 2009") FROM table_204_778
SELECT SUM("population\ncensus 2009") FROM "table_204_778"