The less authoritarian states, such as Allende's Chile, did not end up surviving for long. Can't help but wonder if there is a survivorship bias, wherein only the most vicious and brutal communist states could survive external interference.
Wasn't Allende's Chile pretty much brought down by external forces, i.e. CIA? Calling it survivorship bias is a bit premature if the said countries are antagonised by the most powerful nation on the planet :)
As far as I can see, there are two countries in Europe on that list: Portugal and Greece.