Cleaning up citations 

I decided to trim two of the three cite tags and removed them.  I doubt they would be missed.  As for the third cite tag, I really think "In addition, the exchange rate between ruble and USD is not adequately giving a real comparison to what the costs for Russia really are." isn't needed, and is in violation of WP:OR.  I hesitate on this last one only because it was Citation Needed this year instead of years ago.  Cold7Realm, I know you suggested I wait, but I didn't trim out too much and thought this might be acceptable.  Please revert if you disagree.