_#_Currency: pa'anga (plural—pa'anga); 1 pa'anga (T$) = 100 seniti
_#_Exchange rates: pa'anga (T$) per US$1—1.2832 (January 1991), 1.2809 (1990), 1.2637 (1989), 1.2799 (1988), 1.4282 (1987), 1.4960 (1986), 1.4319 (1985)
_#_Fiscal year: 1 July-30 June
_*Communications #_Highways: 198 km sealed road (Tongatapu); 74 km (Vavau); 94 km unsealed roads usable only in dry weather
_#_Ports: Nukualofa, Neiafu, Pangai
_#_Merchant marine: 6 ships (1,000 GRT or over) totaling 35,857 GRT/480,726 DWT; includes 2 cargo, 1 roll-on/roll-off cargo, 2 container, 1 liquefied gas
_#_Civil air: no major transport aircraft
_#_Airports: 6 total, 6 usable; 1 with permanent-surface runways; none with runways over 3,659 m; 1 with runways 2,440-3,659; 1 with runways 1,220-2,439 m
_#_Telecommunications: 3,529 telephones; 66,000 radios; no TV sets; stations—1 AM, no FM, no TV; 1 Pacific Ocean INTELSAT earth station
_*Defense Forces #_Branches: Land Force, Maritime Division, Royal Tongan Marines, Royal Tongan Guard, Police