Hmm. It's kind of hard for me to reconcile those stats with my personal experience. Growing up in the 80's and 90's, there were hardly any divorced couples in Russia. A number close to half seems completely off. I have to question where they got their numbers... although the more current numbers are probably more on target.
What's also interesting though is who initiates divorce. I believe in the US, roughly 70% of divorces are initiated by women, while in Russia the opposite is true.