_#_Currency:
North Yemeni riyal (plural—riyals); 1 North Yemeni riyal
(YR) = 100 fils;
South Yemeni dinar (plural—dinars); 1 South Yemeni dinar
(YD) = 1,000 fils
_#_Exchange rates:
North Yemeni riyals (YR) per US$1—9.7600 (January 1990), 9.7600 (1989), 9.7717 (1988), 10.3417 (1987), 9.6392 (1986), 7.3633 (1985);
South Yemeni dinars (YD) per US$1—0.3454 (fixed rate)
_#_Fiscal year: calendar year
_*Communications #_Highways: 15,500 km; 4,000 km bituminous, 11,500 km natural surface (est.)
_#_Pipelines: crude oil, 424 km; refined products, 32 km
_#_Ports: Aden, Al Hudaydah, Al Khalf, Mocha, Nishtun, Ras Kathib, Salif