_#_Economic aid: US commitments, including Ex-Im (FY70-89), $3.1 billion; Western (non-US) countries, ODA and OOF bilateral commitments (1970-89), $7.1 billion; Communist countries (1970-89), $110 million
_#_Currency: Mexican peso (plural—pesos); 1 Mexican peso (Mex$) = 100 centavos
_#_Exchange rates: market rate of Mexican pesos (Mex$) per US$1—2,940.9 (January 1991), 2,812.6 (1990), 2,461.3 (1989), 2,273.1 (1988), 1,378.2 (1987), 611.8 (1986), 256.9 (1985)
_#_Fiscal year: calendar year
_*Communications #_Railroads: 20,680 km total; 19,950 km 1.435-meter standard gauge; 730 km 0.914-meter narrow gauge
_#_Highways: 210,000 km total; 65,000 km paved, 30,000 km semipaved or cobblestone, 60,000 km rural roads (improved earth) or roads under construction, 55,000 km unimproved earth roads
_#_Inland waterways: 2,900 km navigable rivers and coastal canals
_#_Pipelines: crude oil, 28,200 km; refined products, 10,150 km; natural gas, 13,254 km; petrochemical, 1,400 km
_#_Ports: Acapulco, Coatzacoalcos, Ensenada, Guaymas, Manzanillo, Mazatlan, Progreso, Puerto Vallarta, Salina Cruz, Tampico, Veracruz
_#_Merchant marine: 64 ships (1,000 GRT or over) totaling 999,423 GRT/1,509,939 DWT; includes 4 short-sea passenger, 9 cargo, 2 refrigerated cargo, 2 roll-on/roll-off cargo, 31 petroleum, oils, and lubricants (POL) tanker, 3 chemical tanker, 7 liquefied gas, 3 bulk, 3 combination bulk