You're probably right; I was using the CIA World Factbook on-line, which is lovely and comprehensive, but which does purchasing-power adjustments by an opaque process probably not involving hamburgers.
They reckoned Portugal's GDP-per-capita was $19.4k and the Czech Republic $15.3k, which does give 20%
no subject
They reckoned Portugal's GDP-per-capita was $19.4k and the Czech Republic $15.3k, which does give 20%