GDP
https://www.google.co.jp/publicdata/explore?ds=d5bncppjof8f9_&met_y=sp_pop_totl&idim=country:KEN:TZA:UGA&hl=en&dl=en#!ctype=l&strail=false&bcs=d&nselm=h&met_y=ny_gdp_mktp_cd&scale_y=lin&ind_y=false&rdim=region&idim=country:KEN:UGA:GHA&ifdim=region&hl=en_US&dl=en&ind=false