Beteil. Körp. 1990 u. 2000 u. 39.2002: Ministry of Planning, Statistics & IT Sector; 38.2001: Ministry of Planning, Statistics & Information Sector; 40.2003 - 43.2006: Ministry of Planning, Statistics & Census Sector
Teils mit Zählung
Annual statistical abstract / Ministry of Planning
Beteil. Körp. 1990 u. 2000 u. 39.2002: Ministry of Planning, Statistics & IT Sector; 38.2001: Ministry of Planning, Statistics & Information Sector; 40.2003 - 43.2006: Ministry of Planning, Statistics & Census Sector