CREATE TABLE table_6487 ("Source" CLOB, "Date" CLOB, "GERB" CLOB, "Attack" CLOB, "Blue Coalition" CLOB)

On what Date is the Blue Coalition 8,80%?
SELECT "Date" FROM table_6487 WHERE "Blue Coalition" = '8,80%'
SELECT "Date" FROM "table_6487" WHERE "Blue Coalition" = '8,80%'