Russian birth rates are so low and its death rates so high that the country is expected to lose at the least 30 percent of its population within the next 40 years, falling from an estimated 141 million to somewhere between 80 to a 100 million. No country in recent centuries has experienced such a dramatic and rapid peacetime drop in its population, so demographers, economists, sociologists and other disciplines are coming up with varying conclusions about the potential impacts.

http://seekingalpha.com/article/149126-demographics-make-russia-a-risky-long-term-investment