[js8]

I think that's an interesting idea, I think it's also documented that people have more sex during power outages.

I can attest that life under socialism was perhaps a bit more boring, certainly there was less distractions (in the form of media, computers, games). However, I am not sure that the dictatorial nature of these regimes affected large enough portion of the population - most people were probably happier with having job security and general stability. I even heard stories from people that they could actually complain more in the job, because they didn't risk they would be fired. Not to mention the general laid back attitude to work that many people had.

However, your hypothesis somehow misses the "more pleasurable" part; it considers sex as something that is done when times are rough, and not as something that is also fun in itself.