This map showed the data of almost all countries' GDP per capita (current US$) in 2009 which represented a clear impression in readers' mind, and it woul ...
The majority of this map's data comes from world bank data, an internationally authorized and credible data source. Some of data comes from other sources due ...
The majority of this map's data comes from world bank data, an internationally authorized and credible data source. Some of data comes from other sources due ...