This is April 2019, IMF statistics, GDP PPP at current prices.
So without very long and tedious explaining how it is “GDP PPP by current prices” – briefly this means that the higher indicator is strongly conncted with how citizens (*) of the country REALLY have good conditions of living, in the widest socio-economic sense.
* Non-citizens may also have something equal, or may have nothing at all – it already depends on the system of migration law, social policy, etc.
World leaders – Luxembourg, (Macau), Switzerland, Norway, Ireland, Qatar, Iceland, Singapore, USA, Denmark, Netherlands.
The CIS countries, in general, hang out between the leaders of Latin America (not bad) and Central Africa (very bad). This is about illusions breaking, yes.