So all GDR victories are thanks to doping? :D
Consider this. Every team was in similar situation like everyone else, if they weren't caught like everyone else it's not their problem, it's a problem of IOC. Their victories are valid and couldn't be canceled in retrospect just because you want to.
Here's Germany's 'progress' in gold medals starting from 1988:
48 (GDR+FRG) > 33 > 20 > 13 > 13 > 16 > 11
If it'd be all thanks to doping the winning phase would have dropped to 11 starting from 1992. In reality it's a slow way down due to simple fact, despite bigger population, investment in sports (or their effecitvity) were down, down and down. As for the USSR example, it's not total population that matter, but 'athletes population', which has decreased in a blink of an eye, and general lack of investment in sports for 10 years.
