| http://www.w3.org/ns/prov#value | - Once the classification is fixed for an edition, based on GNI per capita in the most recent year for which data are available (2010 in this edition), all historical data presented are based on the same country grouping. ??? ??? ??? < means less than. > means more than. $ means current U.S. dollars unless otherwise noted. / in dates, as in 2009/10, means that the period of time, usually 12 months,
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