Fig. 1. GDP per capita 2000 (adjusted for PPP) as a function of the Corruption Perception Index (CPI) for 2002, and Environmental Sustainability Index (ESI) for 2002 as a function of GDP per capita 2000 (adjusted for PPP). CPI: scale from 0 (most corrupt) to 10 (least corrupt). ESI: scale from 0 (least sustainable) to 100 (most sustainable).