Series is obtained by adding up consumption, investment, government and exports, and subtracting imports in any given year.
For more information and proper citation see http://www.rug.nl/research/ggdc/data/pwt/pwt-7.1
Source Indicator: rgdpl
Source: University of Pennsylvania
Release: Penn World Table 7.1
University of Pennsylvania, Purchasing Power Parity Converted GDP Per Capita (Laspeyres), derived from growth rates of Consumption, Government Consumption, Investment for Kenya [RGDPLPKEA625NUPN], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/RGDPLPKEA625NUPN, February 6, 2016.