 TDK also publishes "Türk Dili", a journal on Turkish literature, since 1951, "Belleten", the annual journal on Turkic languages, since 1953, and "Türk Dünyası", another periodical published twice a year on Turkish language and literature since 1996.The 2005 edition of "Güncel Türkçe Sözlük", the official dictionary of the Turkish language published by Turkish Language Association, contains 104,481 entries, of which about 86% are Turkish and 14% are of foreign origin.Among the most significant foreign contributors to Turkish vocabulary are Arabic, French, Persian, Italian, English, and Greek.