Over the past decade those on the way down:
Libya, Yemen, Equatorial Guinea, Greece, the Central African Republic, Sudan, East Timor, Lebanon, Greece, and Trinidad & Tobago. In Syria and Venezuela data collection has stopped altogether, but they would make the list too.
War, dictators, the EU and socialism.
On the way up:
Ethiopia had the highest growth rate of the decade, with Nauru, Rwanda, Ghana, Mongolia, Turkmenistan, Laos, China, India, Bangladesh, Cambodia, and Myanmar as other winners too.
Less war, less dictatorship, less socialism.
You know, there’s a pattern there.