According to the 2007 Ethiopian census and the CIA World Fact Book, the largest first languages are: Oromo 24,929,567 speakers or 33.8% of the total population; Amharic 21,631,370 or 29.3% (federal working language); Somali 4,609,274 or 6.2%; Tigrinya 4,324,476 or 5.9%; Sidamo 4,981,471 or 4%; Wolaytta 1,627,784 or 2.2%; Gurage 1,481,783 or 2%; and Afar 1,281,278 or 1.7%.[12][20] Widely-spoken foreign languages include Arabic (official), English (official; major foreign language taught in schools), and Italian (spoken by European minorities).[12]