Population estimate, 2015: 53.47 m.
GNI per capita, 2014: (PPP$) 2,411
HDI/world rank, 2014: 0.521/151
Internet domain extension: .tz
There are three international airports: Dar es Salaam, Zanzibar and Kilimanjaro (Moshi/Arusha). Although Air Tanzania is the national carrier, Precision Air carries far more passengers (743,000 in 2013) and serves more destinations (ten in 2013). Dar es Salaam is the busiest airport, handling 2,088,282 passengers in 2012 (1,100,666 on international flights), followed by Zanzibar with 787,813 (388,231 on domestic flights).
The climate is very varied and is controlled largely by altitude and distance from the sea. There are three climatic zones: the hot and humid coast, the drier central plateau with seasonal variations of temperature, and the semi-temperate mountains. Dodoma, Jan. 75 °F (23.9 °C), July 67 °F (19.4 °C). Annual rainfall 23″ (572 mm). Dar es Salaam, Jan. 82 °F (27.8 °C), July 74 °F (23.3 °C)....