CREATE TABLE table_16679 ("Source" CLOB, "Date" CLOB, "Method" CLOB, "iOS" CLOB, "Android" CLOB, "BlackBerry" CLOB, "Symbian / Series 40" CLOB, "Bada" CLOB, "Windows" CLOB, "Other" CLOB)

Which source shows Blackberry at 2.9%?
SELECT "Source" FROM table_16679 WHERE "BlackBerry" = '2.9%'
SELECT "Source" FROM "table_16679" WHERE "BlackBerry" = '2.9%'