Czechoslovakia (TCH, 1918-1992), does not include the totals of Czech Republic (CZE, 1992-present) and Slovakia (SVK, 1992-present). 
Wọ́n gbe lọ si ẹ̀tọ́ àlùmọ́nì àti ìdàgbàsókè irin ni ọdun 2008, nigbà to si di April 2010,  o jẹ yiyansípò bi Alakoso Ẹ̀tọ́ Petroleum.. 