NASA, ESA, Roscosmos, and others, all have somewhat different cultures and attitudes when it comes to building and launching spacecraft. I don't have a source, but one anecdote I heard from someone with a long time experience in the field, is that whereas the Europeans and Americans carefully and literally documented every screw turned, Russian engineers went by experience and didn't document and test everything nearly as meticulous as the Europeand and Americans did — and that their failure rates were around the same.
My question is about the failure rate. Is there any significant difference in the launch failure rate between the Americans, Europeans, and Russians, respectively?